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Luzon[edit]

Ilocos Sur[edit]

Legal Basis Effective Date Local government units Actions Statistics
Act 205 1901-08-16 province of Ilocos Sur organized under Act 83
Act 934 1903-10-08 Sinait, Cabugao, Lapo, Magsingal, Santo Domingo, San Ildefonso, Vigan, Bantay, San Vicente, Santa Catalina, Caoayan, Santa, Narvacan, Santa Maria, Santiago, Nueva Coveta, San Esteban, Candon, Santa Lucia, Salcedo, Santa Cruz, San Jose, Sevilla, Tagudin reducing 24 municipalities to 14:
San Ildefonso merged into Santo Domingo
Bantay, San Vicente, Santa Catalina, Caoayan merged into Vigan
Nueva Coveta, San Esteban merged into Santiago
Salcedo merged into Santa Lucia
San Jose, Sevilla merged into Santa Cruz
14 municipalities
Act 1306 1905-02-28 Bangued, Pilar, Bucay, La Paz, Dolores annexed Abra as subprovince 19 municipalities
Act 1624 1907-03-27 Tayum separated from Bangued 20 municipalities
(6 Abra municipalities)
Act 1633 1907-04-26 Santa Catalina separated from Vigan 21 municipalities
Act 1646 1907-05-15 Tagudin annexed to subprovince of Amburayan 20 municipalities
EO 71 (1910) 1911-01-01 San Esteban separated from Santiago 24 municipalities
Caoayan separated from Vigan
Bantay
San Vicente
EO 85 (1912) 1913-01-01 Pidigan separated from Bangued 25 municipalities
EO 80 (1913), EO 64 (1914) 1914-07-01 Twp of Bauguen separated from Santa Lucia, Bo. San Gaspar __ municipalities
Act 2683 1917-03-09 Bangued, Pilar, Bucay, La Paz, Dolores, Tayum, Pidigan subprovince of Abra separated as a regular province
EO 34 (1919) 1919-03-05 Banayoyo, Lidlidda, Nagbukel converted townships to municipalities
EO 76 (1919), EO 97 (1919) 1920-01-01 San Ildefonso separated from Santo Domingo 23 municipalities
RA 3386 1961-06-18 San Juan renamed from Lapog
RA 1627 1957-04-20 Salcedo renamed from Bauguen

Abra[edit]

Legal Basis Effective Date Local government units Actions Statistics
Act 206 1901-08-19 province of Abra organized under Act 83
Act 658 1903-03-04 Peñarrubia renamed from Patoc
Act 1001 1903-11-20 Bangued, Tayum, Pidigan, Pilar, Villavieja, Bucay, San Jose, La Paz, San Gregorio, Dolores, San Juan reduced 11 municipalities to 5:
Tayum, Pidigan merged into Bangued
Villavieja merged into Pilar
San Jose merged into Bucay
San Gregorio merged into La Paz
San Juan merged into Dolores
5 municipalities
Act 1306 1905-04-01 Bangued, Pilar, Bucay, La Paz, Dolores annexed to Ilocos Sur as subprovince
part of Ilocos Sur as subprovince of Abra (1905-1917)
Act 2683, EO 23 (1917) 1917-04-02 Bangued, Pilar, Bucay, La Paz, Dolores, Tayum, Pidigan province of Abra reestablished
EO 34 (1919) 1919-03-05 Danglas, Lagayan, Lagangilang, Manabo, Sallapadan, Luba, Peñarrubia, Villaviciosa, San Quintin, Langiden converted from townships to municipalities
EO 36 (1919) 1919-03-05 Mun dist of Tubo converted from Twp of Tubo
Mun dist of Anayan, Naglibacan, Lanac, Tineg, Lacub, Alaoa, Buneg, Mataragan, Malibcong, Bangilo, Licuan, Ba-ay, Daguioman, Bucloc, Danac, Boliney, Tiempo, Caganayan settlements organized into municipal districts
EO 164 (1965) 1964-07-01 Tubo converted from Mun dist of Tubo
RA 5161 1967-06-17 Tubo converted from Mun dist of Tubo

Benguet[edit]

Legal Basis Effective Date Local government units Actions Statistics
Act 48 1900-11-22 Townships of Baguio, La Trinidad, Galiano, Itogon, Tublay, Atok, Kapangan, Balakbak, Palina, Ampusungan, Loo, Buguias, Kabayan, Adaoay, Bokod, Daklan, Sablan, Kibungan, Ambuklao established civil local governments in all townships 19 townships
Act 662 1903-03-05 rancheria of Gallano annexed to La Union
rancheria of Disdis annexed from La Union
RA 616 1951-05-15 Itogon converted from Mun dist
RA 531 1950-06-16 La Trinidad converted from Mun dist
EO 42 (1963) 1962-07-01 Atok, Bakun, Balbalan, Banaue, Bauko, Bayag, Besao, Bokod, Bontoc, Buguias, Lagawe, Conner, Hungduan, Kabayan, Kabugao, Kapangan, Kiangan, Kibungan, Lubuagan, Luna, Mayoyao, Natonin, Pinukpuk, Potia, Sabangan, Sablan, Sadanga, Sagada, Tadian, Tanudan, Tinglayan, Tuba, Tublay converted from Mun districts

Mountain Province[edit]

Legal Basis Effective Date Local government units Actions Statistics
EO 24 (1910) 1910-03-23 Twp of Daklan merged into Twp of Bokod
Act 2657 1916-12-31 Tagudin
Townships of Alilem, Bakun, San Gabriel, Santol, Sigay, Sudipen, Sugpon, Suyo
divisions of subprovince of Amburayan
City of Baguio
Townships of Atok, Bagulin, Bokod, Buguias, Disdis, Itogon, Kabayan, Kapangan, Kibungan, La Trinidad, Pugo, Tuba, Tublay
divisions of subprovince of Benguet
Townships of Bontoc, Sagada divisions of subprovince of Bontoc
Townships of Ampasungan, Angaki, Banaao, Bauko, Besao, Cervantes, Concepcion, Kayan, Mankayan, Sabangan, San Emilio divisions of subprovince of Lepanto
EO 68 (1927) 1927-07-01 Mun district of Allacapan separated from Mun district of Tauit
EO 188 (1929) 1929-08-01 Mun district of Barlig separated from Mun district of Talubin
EO 200 (1929) 1929-10-01 Mun district of Luna separated from Mun district of Tauit
EO 13 (1936) 1936-02-01 Municipal districts of Ampusungan, Tauit Ampusungan merged into Bakun
Tauit merged into Luna
EO 42 (1963) 1962-07-01 Atok, Bakun, Balbalan, Banaue, Bauko, Bayag, Besao, Bokod, Bontoc, Buguias, Lagawe, Conner, Hungduan, Kabayan, Kabugao, Kapangan, Kiangan, Kibungan, Lubuagan, Luna, Mayoyao, Natonin, Pinukpuk, Potia, Sabangan, Sablan, Sadanga, Sagada, Tadian, Tanudan, Tinglayan, Tuba, Tublay converted from Mun districts

Cagayan[edit]

Legal Basis Effective Date Local government units Actions Statistics
Act 209 1901-08-22 Cagayan organized under Act 83
Act 944 1903-10-15 Lal-lo, Gattaran, Nassiping, Santo Niño, Amulung, Cordoba Mauanan, Malaueg, Aparri, Buguey, Camalaniugan, Basco, Calayan, Claveria, Sanchez-Mira, Pamplona, Abulug, Alcala, Iguig, Solana, Enrile, Tuguegarao, Peñablanca, Baggao, Piat, Tuao reduced 33 municipalities to 22
Nassiping merged into Gattaran, Santo Niño
Cordoba merged into Amulung
Malaueg merged into Mauanan
Buguey merged into Aparri, Camalaniugan
22 municipalities
Act 1693 1907-08-20 created, subprovince of Batanes
Act 1952 1909-05-20 Basco separated to form province of Batanes 21 municipalities
EO 69 (1911) 1912-01-01 Calayan merged with Aparri 20 municipalities
EO 79 (1911) 1912-01-01 Ballesteros separated from Abulug, Aparri 21 municipalities
Act 2390 1914-02-28 Rizal renamed from Mauanan
Faire renamed from Santo Niño
EO 10 (1914) 1915-01-01 Buguey separated from Aparri, Camalaniugan 22 municipalities
EO 81 (1917), EO 93 (1917) 1918-01-01 Gonzaga separated from Buguey 23 municipalities
EO 78 (1919) 1920-01-01 Calayan separated from Aparri 24 municipalities
EO 12 (1925) Municipal district of Langangan
CA 692 1945-10-15 Allacapan converted from Mun dist of Allacapan
RA 5644 1969-06-21 Santo Niño renamed from Faire

Isabela[edit]

Legal Basis Effective Date Local government units Actions Statistics
Act 210 1901-08-24 Isabela organized under Act 83
Act 347 1902-02-03 Santo Tomas separated from Cabagan Nuevo
Act 941 1903-10-12 Echague, Carig, Cordon, Angadanan, Cauayan, Reina Mercedes, Gamu, Naguilian, Ilagan, Palanan, Tumauini, Santa Maria, Santo Tomas, Cabagan Nuevo, Cabagan Viejo reduced 15 municipalities to 11:
Carig, Cordon merged into Echague
Reina Mercedes merged into Cauayan
Palanan merged into Ilagan
11 municipalities
Act 1322 1905-04-13 Tagle renamed from Angadanan 9 municipalities
Santo Tomas, Cabagan Viejo Santo Tomas, Cabagan Viejo merged into Cabagan Nuevo
Act 1466 1906-03-19 Palanan separated from Ilagan 10 municipalities
EO 20 (1909) 1910-01-01 Santiago separated fmr municipalities of Carig, Cordon from Echague 11 municipalities
EO 68 (1909) 1910-01-01 San Pablo • separated fmr municipality of Cabagan Viejo from Cabagan Nuevo
• organized as San Pablo
12 municipalities
EO 5 (1912) 1913-01-01 Reina Mercedes separated from Cauayan 13 municipalities
Act 2089 1911-12-22 Angadanan renamed from Tagle
Act 2390 1914-02-28 Cabagan renamed from Cabagan Nuevo
EO 36 (1919) 1919-03-05 Municipal district of San Mariano converted from township __ municipalities
1 municipal district
EO 13 (1920) 1919-03-05 municipal districts of Antatet, Dalig, Sili separated from Cauayan __ municipalities
16 municipal district
municipal districts of Ballucu, Bannagao separated from Gamu
municipal districts of Demasere, Dipugguen, Denalasang, Debeuang, Debamabnga, Depaguideng, Dimapnad, Tinigabeng separated from Palanan
municipal district of Baiyannaueg separated from San Pablo
municipal district of Tagubasi separated from Tumauini
EO 35 (1920) 1921-01-01 Jones separated from Echague
Seat of govt: Bo. Cabanuangan
14 municipalities
Act 3416 1927-12-07 San Mariano converted from municipal district 15 municipalities
EO 181 (1939) 1939-07-01 Cordon separated from Santiago 16 municipalities
CA 572 1940-06-08 Municipal district of Aurora renamed from municipal district of Dalig
EO 97 (1946) 1946-03-17 San Mateo separated from Santiago 17 municipalities
EO 125 (1948) 1948-03-23 municipal district of Bannagao merged into municipal district of Aurora
EO 136 (1948) 1948-05-05 Roxas separated from Gamu
Seat of govt: Bo. Vira
18 municipalities
EO 139 (1948) 1948-07-03 Aurora converted from municipal district 19 municipalities
EO 199 (1949) 1949-01-05 Santo Tomas separated from Cabagan
Seat of govt: Bo. Santo Tomas
20 municipalities
EO 267 (1949) 1949-09-28 Antatet coverted from municipal district 21 municipalities
EO 268 (1949) 1949-09-28 Alicia separated from Angadanan
Seat of govt: Bo. Angadanan Viejo
22 municipalities
EO 269 (1949) 1949-09-28 San Agustin separated from Jones
Seat of govt: Bo. Dappig
23 municipalities
EO 293 (1949) 1949-11-05 Cabatuan separated from Cauayan
Seat of govt: Bo. Cabatuan
24 municipalities
RA 633 1951-06-08 Luna renamed from Antatet
RA 678 1952-04-08 Mallig separated from Roxas, Ilagan, Tumauini, Santo Tomas
Seat of govt: Bo. Olango 1°
25 municipalities
RA 2009 1957-06-22 Magsaysay separated from Tumauini
Seat of govt: Bo. Ragan Sur
26 municipalities
RA 2048 1957-06-23 Callang separated from Roxas
Seat of govt: Bo. Callang
27 municipalities
RA 2418 1959-06-21 Quezon separated from Mallig
Seat of govt: Bo. Settlement No. I
28 municipalities
RA 3320 1963-11-12 Ramon separated from Santiago, San Mateo
Seat of govt: Bo. Burgos
29 municipalities
RA 4600 1965-06-19 San Manuel renamed from Callang
RA 4873 1967-05-18 Benito Soliven separated from San Mariano, Ilagan, Naguilian
Seat of govt: Bo. Melappia
30 municipalities
RA 4877 1967-05-18 Burgos separated from Gamu, Aurora
Seat of govt: between Bo. Caliguian and Gullalabo
31 municipalities
RA 4901 1967-06-17 Quirino separated from Ilagan, Roxas, Gamu
Seat of govt: between Bos. Santa Lucia and Luna
32 municipalities
RA 4906 1967-06-17 San Guillermo separated from Angadanan, Echague
Seat of govt: Bo. Edcor
33 municipalities
RA 5139 1967-06-17 San Isidro separated from Echague
Seat of govt: between Bo. Rizal and Gomez
34 municipalities
RA 5776 1969-06-21 Municipal district of Dinapigue separated from San Mariano
Municipal district of Divilacan separated from Tumauini
Municipal district of Maconacon separated from Cabagan
BP 291 1982-11-14 Delfin Albano renamed from Magsaysay
RA 7720 1994-05-05 City of Santiago converted from municipality
RA 9017 2001-03-30 City of Cauayan
RA 10169 2012-08-11 City of Ilagan

Nueva Vizcaya[edit]

Legal Basis Effective Date Local government units Actions Statistics
Act 387 1902-04-09 Townships of Bayombong, Bambang, Dupax, Aritao, Solano, Bagabag converted from pueblos 6 townships
Act 850 1903-10-01 Township of Aritao merged into Dupax 5 townships
Act 2657 1916-12-31 Townships of Bagabag, Bambang, Bayombong, Dupax, Imugan, Kayapa, Santa Cruz, Solano as of Administrative Code of 1916 8 townships
EO 39 (1918) 1919-01-01 Township of Aritao separated from Township of Dupax 9 townships
EO 6 (1924) 1924-02-02 Municipal district of Pinappagan rancherias organized into municipal district
EO 59 (1925) 1926-01-01 Municipal district of Kasibu
EO 356 (1950) 1950-11-11 Aglipay, Aritao, Bagabag, Bambang, Bayombong, Diffun, Dupax, Kayapa, Maddela, Solano,
Municipal districts of Imugan, Kasibu, Pinappagan, Pingkian, Kayapa
reorganized 6 municipalities, 5 municipal districts into 10 municipalities
Imugan merged into Aritao
Kasibu merged into Bambang
Pinappagan renamed to Maddela
Municipal districts of Pingkian, Kayapa merged into Mun of Kayapa
10 municipalities
EO 160 (1956) 1956-01-19 Municipal district of Kasibu (separated from Bambang) 10 municipalities
1 municipal district
RA 1972 1957-06-22 Ibung separated from Solano 11 municipalities
1 municipal district
RA 2179 1959-05-02 Mun dist of Santa Fe (separated from Aritao)
• renamed from Imugan
11 municipalities
2 municipal districts
RA 2515 1959-06-21 Villaverde renamed from Ibung
RA 2519 1959-06-21 Saguday separated from Aglipay, Diffun 12 municipalities
2 municipal districts
RA 3427 1961-06-18 Mun dist of Quezon separated from Solano 12 municipalities
3 municipal districts
RA 4973 1967-06-17 Mun dist of Diadi separated from Bagabag 12 municipalities
4 municipal districts
EO 77 (1967) 1964-07-01 Santa Fe converted from Mun dist 13 municipalities
3 municipal districts
RA 4734 1966-06-18 Diffun, Saguday, Aglipay, Maddela separated to form subprovince of Quirino 9 municipalities
3 municipal districts
RA 4735 1966-06-18 Mun dist of Ambaguio separated from Bayombong 9 municipalities
4 municipal districts
EO 184 (1969) 1968-07-01 Kasibu, Quezon converted from Mun dist 11 municipalities
2 municipal districts
RA 6372, PD 586, PD 617 1974-11-20 Dupax del Sur separated from Dupax 12 municipalities
2 municipal districts
Dupax del Norte renamed from Dupax
BP 27 1979-04-20 Alfonso Castañeda separated from Dupax del Norte, Dupax del Sur
13 municipalities
2 municipal districts

Quirino[edit]

Legal Basis Effective Date Local government units Actions Statistics
RA 4734 1966-06-18 Diffun, Saguday, Aglipay, Maddela separated from Nueva Vizcaya to form subprovince of Quirino 4 municipalities
RA 5554 1969-06-21 Cabarroguis separated from Diffun, Aglipay 5 municipalities
RA 6394 1971-09-10 subprovince of Quirino converted into regular province
BP 345 1983-09-24 Nagtipunan separated from Maddela 6 municipalities

Romblon[edit]

Legal Basis Effective Date Local government units Actions Statistics
Act 104 1901-03-16 District of Romblon organized into province under Act 83
Act 994 1903-11-17 Romblon, Corcuera, Banton, Cajidiocan, Magallanes, Badajoz, Odiongan, Despujols, Looc, Santa Fe, San Fernando reduced 11 municipalities to 6:
Corcuera, Banton merged into Romblon
Magallanes merged into Cajidiocan
Despujols merged into Odiongan
Santa Fe merged into Looc
6 municipalities
Act 1665 1907-07-02 Romblon, Cajidiocan, Badajoz, Odiongan, Looc, San Fernando Romblon annexed to Capiz as subprovince
Concepcion annexed to Mindoro
Subprovince of Romblon, part of Capiz (1907-1918)
Act 2724, EO 5 (1918) 1918-02-22 Romblon, Cajidiocan, Badajoz, Odiongan, Looc, San Fernando, Jones province reestablished, separated from Capiz 7 municipalities
1 township
Twp of Concepcion annexed from Mindoro
EO 34 (1919) 1919-03-05 Concepcion converted from Twp of Concepcion 8 municipalities
EO 77 (1919) 1920-01-01 Despujols separated from Odiongan 9 municipalities
EO 292 (1930) 1931-01-01 Corcuera separated from Jones 10 municipalities
EO 408 (1933) 1931-03-01 Magdiwang • separated from Cajidiocan
• renamed from Magallanes
11 municipalities
CA 581[1] 1940-06-08 Badajoz, Despujols, Odiongan, Looc, Cajidiocan, Magdiwang, San Fernando, Romblon, Jones, Concepcion, Corcuera 11 municipal governments abolished 4 special municipalities
Special municipalities of Tablas, Sibuyan, Romblon, Maghali replaced with 4 special municipalities:
Badajoz, Despujols, Odiongan, Looc merged to form special municipality of Tablas
Cajidiocan, Magdiwang, San Fernando merged to form special municipality of Sibuyan
Romblon converted into special municipality of Romblon
Jones, Concepcion, Corcuera merged to form special municipality of Maghali
Part of Capiz per EO 84, s. 1942? (1942-1946)
RA 38 1946-10-01 Badajoz, Despujols, Odiongan, Looc, Cajidiocan, Magdiwang, San Fernando, Romblon, Jones, Concepcion, Corcuera repealed CA 581 12 municipalities
Santa Fe separated from Looc
RA 1660 1957-06-20 San Agustin renamed from Badajoz
RA 2158 1959-04-24 Banton renamed from Jones
EO 427 (1961) 1961-03-21 Alcantara separated from Looc 13municipalities
RA 3358 1961-06-18 San Andres renamed from Despujols
RA 3423 1961-06-18 Mun dist of Carabao Island separated from Santa Fe 13 municipalities
1 municipal district
RA 4265 1965-06-19 Mun dist of San Jose renamed from Mun dist of Carabao Island
RA 5317 1968-01-01 Mun dist of Calatrava separated from San Agustin 13 municipalities
2 municipal districts
EO 184 (1969) 1968-07-01 San Jose converted from Mun dist of San Jose 14 municipalities
1 municipal district
PD 1492 1978-06-11 Ferrol separated from Odiongan 15 municipalities
1 municipal district
BP 234 1982-09-12 Imelda separated from San Agustin 16 municipalities
1 municipal district
RA 6651 1988-04-17 Santa Maria renamed from Imelda

Palawan (Paragua)[edit]

Legal Basis Effective Date Local government units Actions Statistics
Act 422 1902-06-23 Paragua organized
Capital: (Cuyo)
Act 1299 1905-02-10 Araceli merged into Puerto Princesa
Act 1363 1905-06-28 Paragua renamed to Palawan
Act 1498 1906-05-29 Culion Island removed from jurisdiction of Palawan
EO 87 (1910) 1911-01-01 Township of Taytay merged into settlements of Dumaran, Bacuit
EO 32 (1911) 1911-07-01 Township of Cagayancillo township abolished, constituted as settlement
EO 33 (1911) 1911-07-01 settlement of Taytay separated from settlements of Dumaran, Bacuit
Act 2657 1916-12-31 townships as of Administrative Code (1916):
(Cagayancillo, Coron, Cuyo, Puerto Princesa, Taytay)
Act 2711 (Agutaya, Bacuit, Cagayancillo, Coron, Cuyo, Dumaran, Puerto Princesa, Taytay)
(Municipal districts of Aborlan, Balabac, Brooke's Point)
(8 municipalities, 3 municipal districts)
1916 (Agutaya)
EO 232 (1949) 1949-06-28 Aborlan converted from municipal districts 10 municipalities
Brooke's Point
RA 560 1950-06-17 Busuanga separated from Coron
Seat of govt: Bo. New Busuanga
11 municipalities
RA 615 1951-05-15 Roxas separated from Puerto Princesa
Seat of govt: Sitio Barbacan, Bo. Del Pilar
12 municipalities
RA 617 Quezon separated from Aborlan, Brooke's Point
Seat of govt: Bo. Alfonso XIII
13 municipalities
RA 1020 1954-06-12 Linapacan separated from Coron
Seat of govt: Bo. San Miguel
14 municipalities
RA 1111 1954-06-15 Araceli renamed from Dumaran
RA 1140 1954-06-17 El Nido renamed from Bacuit
RA 2022 1957-06-22 Balabac converted from municipal district 15 municipalities
RA 3418 1961-06-18 Dumaran separated from Araceli, Roxas, Taytay
Seat of govt: Bo. Dumaran
16 municipalities
RA 3425 Bataraza separated from Brooke's Point
Seat of govt: Bo. Marangas
17 municipalities
RA 3426 Magsaysay separated from Cuyo
Seat of govt: Bo. Danawan
18 municipalities
RA 5642 1969-06-21 Narra separated from Aborlan
Seat of govt: Bo. Narra
19 municipalities
RA 5821 San Vicente separated from Taytay, Puerto Princesa
Seat of govt: Bo. San Vicente
20 municipalities
RA 5906 1970-01-01 City of Puerto Princesa converted from municipality 1 city, 19 municipalities
PD 1596 1978-06-11 Kalayaan
Seat of govt: Brgy. Pag-Asa
1 city, 20 municipalities
BP 386 1983-04-14 Marcos separated from Quezon
Seat of govt: Brgy. Punta Baja
1 city, 21 municipalities
RA 6652 1988-04-17 Dr. Jose P. Rizal renamed from Marcos
RA 7193 1992-09-12 Culion created from Culion Leper Colony
Seat of govt: Brgy. Balala
1 city, 22 municipalities
RA 7679 1994-05-02 Sofronio Española separated from Brooke's Point
Seat of govt: Brgy. Pulot Center
1 city, 23 municipalities

Visayas[edit]

Bohol[edit]

Legal Basis Effective Date Local government units Actions Statistics
Act 117 1901-04-20 Bohol organized under Act 83
Act 370 1902-03-06 Dauis, Panglao, Corella, Tagbilaran, Cortes, Maribojoc, Loon, Calape, Katigbiyan, Tubigon, Getafe, Inabanga, Ipil, Talibon, Batuanan, Ubay, Candijay, Anda, Guindulman, reduced 33 municipalities to 15:
Dauis merged into Panglao
Corella, Cortes (part),
Cortes merged into Maribojoc
Loon merged into Calape
Katigbiyan merged into Tubigon
Getafe merged into Inabanga
Ipil merged into Talibon
Batuanan merged into Ubay
Candijay, Anda merged into Guindulman

The municipalities of Duero and Garcia Hernandez are hereby consolidated with that of Hagna, under the name of Hagna.

The municipality of Duminaw is hereby consolidated with that of Valencia, under the name of Valencia.

The municipality of Lila is hereby consolidated with that of Laoay, under the name of Laoay.

The municipality of Alburquerque is hereby consolidated with that of Baklayon, under the name of Baklayon.

The municipality of Antequera is hereby consolidated with that of Balilihan, under the name of Balilihan.

The municipality of Bilar and Sierra-Bullones are hereby consolidated with that of Carmen, under the name of Carmen.

EO 88 (1917) 1918-01-01 Sikatuna separated from Alburquerque, Balilihan 35 municipalities
EO 3 (1919), EO 22 (1919) 1919-01-01 Clarin separated from Tubigon, Inabanga 36 municipalities

Mindanao[edit]

Misamis[edit]

Legal basis Effective Date Local government unit Actions Statistics
Act 128 1901-05-15 province of Misamis organized under Act 83
Act 951 1903-10-22 Cagayan, Agusan, Iponan, Opol, Salvador, Alubijid, Initao, Tagaloan, Santa Ana, Balingasag, Jasaan, Lagonglong, Salay, Talisayan, Gingoog, Mambajao, Catarman, Sagay, Mahinog, Misamis, Loculan, Jimenez, Oroquieta, Langaran reduced 24 municipalities to 10:
Agusan (part 1/2), Iponan, Opol, Salvador, Alubijid merged into Cagayan
Agusan (part 2/2), Santa Ana merged into Tagoloan
Jasaan, Lagonglong, Salay merged into Balingasag
Gingoog merged into Talisayan
Catarman, Sagay, Mahinog merged into Mambajao
Loculan merged into Misamis
10 municipalities
Act 2390 1914-02-28 Plaridel renamed from Langaran
EO 67 (1916) 1917-01-01 Aloran separated from Oroquieta 15 municipalities
EO 94 (1919) 1920-01-01 Salay separated from Balingasag 16 municipalities
EO 61 (1920) 1921-01-01 Clarin, Tudela separated fmr municipality of Loculan from Misamis, divided into new municipalities 18 municipalities
EO 74 (1927) 1927-09-01 Municipal districts of Claveria, Lourdes, Lumbia, Taglimao
EO 178 (1929) 1929-08-01 Kinoguitan separated from Talisayan 19 municipalities
EO 179 (1929) 1929-08-01 Lopez Jaena separated from Plaridel
Seat of govt: Bo. Manella
20 municipalities
Act 3537 1930-01-01 Baliangao, Plaridel, Lopez Jaena, Oroquieta, Aloran, Jimenez, Tudela, Clarin, Misamis Misamis Occidental 10 municipalities
EO 220 (1929) 1930-04-01 Regidor separated from Misamis 21 municipalities

Misamis Occidental[edit]

Legal basis Effective Date Local government unit Actions Statistics
Act 3354 1927-11-30
Act 3537 1930-01-01 Baliangao, Plaridel, Lopez Jaena, Oroquieta, Aloran, Jimenez, Tudela, Clarin, Misamis 10 municipalities
Act 3701 1930-11-20 Tangub renamed from Regidor
EO 242 (1939) 1940-01-02 Bonifacio separated from Tangub
Seat of govt: Sitio Digson
11 municipalities
EO 85 (1947) 1947-11-16 Calamba separated from Plaridel
Seat of govt: Bo. Calamba
RA 321 1948-06-19 City of Ozamiz converted, renamed from Municipality of Misamis
EO 258 (1949) 1949-08-30 Sinacaban separated from Jimenez
EO 202 (1956) 1956-09-27 Municipal distict of Concepcion separated from Aloran
Seat of govt: Bo. Concepcion
EO 261 (1957) 1957-08-12 Sapang Dalaga separated from Baliangao
Seat of govt: Bo. Sapang Dalaga
RA 4822 1966-06-18 Panaon separated from Jimenez
Seat of govt: Bo. Panaon
RA 5131 1967-06-17 City of Tangub converted from municipality
RA 5518 1969-06-21 City of Oroquieta
BP 171 1982-02-08 Don Mariano Marcos separated from Clarin, Tudela, Sinacaban, Misamis Occidental, Bonifacio, Panaon, Aloran
Seat of govt: Brgy. Tuno
RA 6845 1990-01-20 Don Victoriano renamed from Don Mariano Marcos

Misamis Oriental[edit]

Legal basis Effective Date Local government unit Actions Statistics
EO 244 (1930) 1930-05-01 Municipal district of Taglimao merged into Municipal district of Lumbia
EO 266 (1940) 1940-07-01 Alubijid separated from Cagayan 12 municipalities
RA 521 1950-06-15 City of Cagayan de Oro • converted and renamed from municipality of Cagayan
Tagoloan (part) merged into Cagayan
EO 334 (1950) 1950-07-22 Claveria converted from municipal district
EO 490 (1952) 1952-02-02 Balingoan separated from Talisayan
EO 38 (1954) 1954-05-26 Municipal district of Lumbia merged into Opol, City of Cagayan de Oro
EO 96 (1955) 1955-02-09 Municipal district of Lourdes merged into Alubijid, El Salvador, Initao, Manticao, Opol
EO 430 (1961) 1961-06-08 Gitagum separated from Alubijid

Surigao[edit]

Legal basis Effective Date Local government unit Actions Statistics
Surigao
Act 127 1901-05-15 province organized under Act 83
Act 953 1903-10-22 Surigao, Anao-aon, Cabadbaran, Tubay, Jabonga, Nasipit, Butuan, Veruela, Talacogon, Loreto, Nonoc, Dinagat, Sapao, Numancia, Cabuntog, Dapa, Mainit, Bacuag, Taganaan, Placer, Claver Gigaquit, Cortes, Tigao, Tandag, La Paz, Tago, Bislig, Linguig, Hinatuan, Cantilan, Carrascal, Lanuza, Lianga reduced 34 municipalities to 29
Anao-aon merged into Surigao
Tubay, Jabonga merged into Cabadbaran
Tigao merged into Cortes
Linguig merged into Bislig
29 municipalities
Act 1241 1904-10-05 Surigao, Nonoc, Placer, Taganaan, Mainit, Gigaquit, Bacuag, Claver, Cantilan, Carrascal, Lanuza, Tandag, Cortes, Tago, La Paz, Lianga, Hinatuan, Bislig, Dapa, Numancia, Cabuntog, Sapao, Dinagat, Loreto, Butuan, Nasipit, Talacogon, Veruela, Cabadbaran reduced 29 municipalities to 12
Nonoc merged into Surigao
Taganaan, Mainit merged into Placer
Bacuag, Claver merged into Gigaquit
Carrascal, Lanuza merged into Cantilan
Cortes, Tago, La Paz merged into Tandag
Bislig merged into Hinatuan
Numancia, Cabuntog, Sapao merged into Dapa
Loreto merged into Dinagat
Nasipit merged into Butuan
Veruela merged into Talacogon
12 municipalities
Act 1693 1907-08-20 Butuan, Talacogon, Cabadbaran separated to form province of Agusan 9 municipalities
EO 41 (1918) 1919-01-01 Tago separated from Tandag 10 municipalities
EO 52 (1918) 1919-01-01 Carrascal separated from Cantilan 12 municipalities
Lanuza
EO 60 (1918), EO 68 (1919) 1919-01-01 Loreto separated from Dinagat 13 municipalities
EO 61 (1918) 1919-01-01 Bacuag separated from Gigaquit 14 municipalities
EO 72 (1919) 1919-03-05 Mun districts of Tagbiyani, Macopa, Pili, Sibahay, San Miguel, Libas, San Isidro, Xavier, Bahi, Soriano, Coleto, Pamaypayan, Borboanan, Union settlements created into municipal districts
EO 90 (1919) 1920-01-01 Numancia separated from Dapa 15 municipalities
EO 62 (1920) 1921-01-01 Bislig separated from Hinatuan 16 municipalities
EO 65 (1920) 1921-01-01 Lingig separated from Hinatuan 17 municipalities
EO 180 (1929) 1929-08-01 Cabuntog separated from Dapa 18 municipalities
Act 3557 1929-11-25 General Luna renamed from Cabuntog
EO 290 (1930) 1931-01-01 Mainit separated from Placer 19 municipalities
RA 194 1947-06-22 Tagana-an separated from Placer 20 municipalities
EO 445 (1951) 1951-06-06 Oteiza separated from Lianga 21 municipalities
EO 559 (1953) 1953-01-20 Cagwait separated from Tago 22 municipalities
EO 561 (1953) 1953-02-02 Madrid separated from Cantilan 23 municipalities
EO 623 (1953) 1953-10-01 Sapao separated from Numancia 24 municipalities
EO 624 (1953) 1953-10-01 Cortes separated from Tandag, Lanuza 25 municipalities
EO 638 (1953) 1953-10-31 Pilar separated from Dapa 26 municipalities
RA 1261 1955-06-10 Marihatag renamed from Oteiza
EO 126 (1955) 1955-09-13 Claver separated from Gigaquit 27 municipalities
EO 195 (1956) 1956-07-31 Malimono separated from Surigao 28 municipalities
EO 249 (1957 1957-05-24 Anao-aon separated from Surigao 29 municipalities
EO 249 (1957) 1957-09-18 Tubod separated from Mainit 30 municipalities
EO 357 (1959) 1959-09-15 Sison separated from Surigao 31 municipalities
EO 359 (1959) 1959-10-09 San Isidro separated from Numancia 32 municipalities
EO 367 (1959) 1959-12-23 Cagdianao separated from Dinagat 33 municipalities
EO 381 (1960) 1960-02-29 Albor separated from Loreto, Dinagat 34 municipalities
RA 2786 1960-06-19 Dinagat, Loreto, Dapa, Numancia, General Luna, Pilar, Sapao, Malimono, Anao-aon, Surigao, Placer, Tagana-an, Mainit, Tubod, Bacuag, Gigaquit, Claver, Sison, San Isidro, Albor, Cagdianao province divided into Surigao del Norte 21 municipalities
Carrascal, Cantilan, Madrid, Lanuza, Cortes, Tandag, Tago, Cagwait, Hinatuan, Marihatag, Lianga, Bislig, Lingig province divided into Surigao del Sur 13 municipalities

Surigao del Norte[edit]

Legal basis Effective Date Local government unit Actions Statistics
RA 2786 1960-06-19 Dinagat, Loreto, Dapa, Numancia, General Luna, Pilar, Sapao, Malimono, Anao-aon, Surigao, Placer, Tagana-an, Mainit, Tubod, Bacuag, Gigaquit, Claver, Sison, San Isidro, Albor, Cagdianao Surigao del Norte created from Surigao 21 municipalities
RA 3489 1962-06-16 Oteiza separated from Marihatag
Seat of govt: Bo. Oteiza
RA 4786 1966-06-18 Del Carmen renamed from Numancia
RA 4981 1967-06-17 Libjo renamed from Albor
RA 4986 Rizal separated from Dinagat
Seat of govt: Bo. Rizal
RA 4998 Santa Monica renamed from Sapao
RA 5093 Burgos separated from Sapao
Seat of govt: Bo. Burgos
RA 5239 1968-06-15 Alegria separated from Mainit
Seat of govt: Bo. Alegria
RA 5641 1969-06-21 Sta. Monica renamed from Sapao
RA 5643 Tubajon separated from Loreto
Seat of govt: Bo. San Vicente & Santa Cruz
RA 5775 Basilisa separated from Dinagat
Seat of govt: Bo. Rizal
RA 6218 1971-06-19 San Francisco renamed from Anao-aon
Dinagat Islands[edit]

Surigao del Sur[edit]

Legal basis Effective Date Local government unit Actions Statistics
RA 2786 1960-06-19 Carrascal, Cantilan, Madrid, Lanuza, Cortes, Tandag, Tago, Cagwait, Hinatuan, Marihatag, Lianga, Bislig, Lingig province created from Surigao 13 municipalities
EO 452 (1961) 1961-11-20 Bayabas separated from Cagwait, Tago
EO 196 (1965) 1965-11-17 Mangagoy separated from Bislig
City of Bislig converted from Mun of Bislig
City of Tandag converted from Mun of Tandag

Agusan[edit]

Legal basis Effective Date Local government unit Actions Statistics
Act 1693 1907-08-20 Butuan, Talacogon, Cabadbaran province of Agusan created from Surigao 3 municipalities
EO 18 (1921) 1921-05-01 Jabonga converted from municipal district 4 municipalities
EO 96 (1928) 1928-02-01 Municipal district of San Vicente, Amparo merged into Butuan
EO 181 (1929) 1929-08-01 Nasipit separated from Butuan 5 municipalities
EO 65 (1936) 1937-01-01 Buenavista separated from Butuan 6 municipalities
RA 188 1947-10-08 Tubay separated from Cabadbaran
RA 523 1950-06-15 City of Butuan converted from Butuan
EO 611 (1953) 1953-09-11 Esperanza • converted from Mun dist of Esperanza
Mun districts of Esperanza, Concordia, Maygatasan, Maasin, Nuevo Trabajo, Remedies, Nuevo Sibagat, Guadalupe, Bakingking, Baylo, Bunaguit, San Luis, Sta. Ines, Verdu, Milagros merged into Esperanza
RA 2519 1959-06-21 San Francisco • converted from Mun district of San Francisco
Mun districts of Borbon, Ebro, Novele, Cabawan, Rosario, Alegria, Cabantao, San Francisco merged into San Francisco
EO 147 (1965) 1964-07-01 La Paz, Loreto, Santa Josefa, Veruela converted from Mun districts
RA 4979 1967-06-17 Carmen, Nasipit, Buenavista, Cabadbaran, Tubay, Jabonga, Kitcharao, Las Nieves Agusan del Norte created from province of Agusan 8 municipalities
Bayugan, Esperanza, Prosperidad, San Francisco, Bunawan, Talacogon, La Paz, Loreto, Veruela, Santa Josefa Agusan del Sur created from province of Agusan 10 municipalities
Agusan del Norte[edit]
Legal basis Effective Date Local government unit Actions Statistics
BP 236 1983-09-07 Remedios T. Romualdez separated from Cabadbaran
RA 9434 2007-07-28 City of Cabadbaran converted from Mun of Cabadbaran
Agusan del Sur[edit]
Legal basis Effective Date Local government unit Actions Statistics
BP 56 1980-09-22 Sibagat separated from Bayugan
RA 9405 2007-06-20 City of Bayugan converted from Mun of Bayugan
Municipality/City Province Inception Foundational text Separated from
Talacogon Agusan del Sur 1872-11-13
Las Nieves Agusan del Norte (MD: )
EO 42 (1963) (RM:1963-06-25)
Carmen Agusan del Norte 1949-06-15 RA 380 (RM:1949-06-15) Nasipit
Santiago Agusan del Norte 1968-06-15 RA 5242 (RM:1968-06-15) Cabadbaran
Magallanes Agusan del Norte 1969-06-21 RA 5660 (RM:1969-06-21) Butuan
San Francisco Agusan del Sur 1959-06-21 RA 2518 (RM:1959-06-21) Merged into San Francisco: MD: Borbon, Ebro, Novele, Cabawan, Rosario, Alegria, Cabantao, San Francisco
Kitcharao Agusan del Norte 1963-06-22 RA 3842 (RM:1963-06-22) Jabonga
Prosperidad Agusan del Sur 1960-08-18 RA 2650 Merged into Prosperidad: MD: Prosperidad, Sianib, Sta. Irena, San Salvador, Maug, Salembugaon, Bahbah, Aspitia, Los Arcos, Aurora, Mapaga, La Caridad, Anibongan
Bunawan Agusan del Sur 1959-06-21 RA 2517 Merged into Bunawan: MD: Mambalili, Bunawan, Libertad, Basa, Tudela, San Isidro, Santa Maria, Trento, Cuevas, San Salvacion; Villages: San Marcos, San Ignacio
Bayugan Agusan del Sur 1961-08-06 EO 440 (1961)
RA 9405 (C:2007-03-23)
Esperanza
San Luis Agusan del Sur 1968-06-15 RA 5262 Esperanza
Trento Agusan del Sur 1968-06-15 RA 5283 Bunawan
Rosario Agusan del Sur 1968-06-15 RA 5760 San Francisco

Bukidnon[edit]

Legal basis Effective Date Local government unit Actions Statistics
Act 1693 1907-08-20 created as subprovince of Agusan
Act 2408 1914-09-01 Bukidnon separated from Agusan
• converted from subprovince
RA 1720 1957-06-21 Manolo Fortich renamed from Maluko
EO 272 (1957) 1957-10-04 Baungon, Kibawe, Libona, Maramag, Sumilao converted from municipal districts
EO 347 (1959) 1959-07-29 San Fernando separated from Malaybalay, Maramag
EO 360 (1959) 1959-10-11 Valencia separated from Malaybalay
EO 444 (1961) 1961-08-29 Dangcagan separated from Kibawe, Maramag
EO 118 (1964) 1964-10-01 Kalilangan separated from Pangantucan
EO 119 (1964) 1964-10-01 Lantapan separated from Malaybalay
EO 161 (1965) 1965-08-17 Don Carlos separated from Maramag
EO 198 (1965) 1965-11-18 Kitaotao separated from Kibawe (Dangcagan), Maramag
GR L-23825 1965-12-24 Kalilangan, Lantapan creation declared null and void
RA 4787 1966-06-18 Lantapan separated from Malaybalay
RA 4788 1966-06-18 Kalilangan separated from Pangantucan
RA 4789 1966-06-18 San Fernando separated from Malaybalay, Maramag
RA 4800 1966-06-18 Don Carlos separated from Maramag
RA 4801 1966-06-18 Kitaotao separated from Kibawe (Dangcagan), Maramag
RA 4802 1966-06-18 Quezon separated from Dangcagan, Maramag
RA 8985 2001-01-12 City of Valencia converted from municipality

Davao[edit]

Legal basis Effective Date Local government unit Actions Statistics
Santa Cruz
EO 8 (1921) formed political subdivisions of Davao:
EO 64 (1936) 1936-01-01 Malita, Pantukan converted from Mun dist to Mun 8 municipalities
_ municipal districts
CA 51 1936-10-16 City of Davao, municipal district of Guianga • converted from Municipality of Davao
• municipal district of Guianga merged to form Davao City
EO 352 (1941) 1941-07-01 Tagum converted from Mun dist
EO 151 (1948) 1948-08-01 Samal, Lupon, Kapalong converted Mun dist to Mun
EO 156 (1948) 1948-08-01 Compostela Mun dists of Compostela, Moncayo merged into Mun of Compostela
New Leyte Mun dists of Saug, Camansa merged into Mun of New Leyte
Governor Generoso Mun dists of Surup, Sigaboy merged into Mun of Governor Generoso
Trinidad Mun dists of Batulaki, Caburan merged into Mun of Trinidad
EO 173 (1948) 1948-09-13 Saug renamed from New Leyte
EO 236 (1949) 1949-07-01 Digos separated from Santa Cruz
Padada
Panabo separated from Tagum
EO 506 (1952) 1952-06-06 Bansalan separated from Digos
EO 596 (1953) 1953-05-28 Hagonoy separated from Padada
Malalag
Doña Alicia separated from Tagum, Pantukan
Babak separated from Samal
RA 1007 1954-06-12 Mabini renamed from Doña Alicia
RA 1675 1957-06-20 Asuncion renamed from Saug
RA 4755 1966-06-18 Tarragona separated from Mati
RA 4808 1966-06-18 Montevista separated from Nabunturan, Compostela, Monkayo, Asuncion, New Corella
RA 4867 1967-07-01 Babak, Samal, Tagum, Santo Tomas, Asuncion, Kapalong, Panabo, Nabunturan, Monkayo, Mawab, Mabini, Compostela, Pantukan separated to form part of province of Davao del Norte
Sta. Cruz, Digos, Matanao, Bansalan, Hagonoy, Padada, Sulop, Malalag, Malita and Jose Abad Santos; separated to form part of province of Davao del Sur
Lupon, Governor Generoso, Mati, Manay, Caraga, Baganga, Cateel separated to form part of province of Davao Oriental
RA 4976 1967-06-17 Magsaysay separated from Bansalan
RA 5747 1969-06-21 Banaybanay separated from Lupon
RA 5820 1969-06-21 Boston separated from Cateel

Davao del Norte[edit]

Legal basis Effective Date Local government unit Actions Statistics
RA 8471 1998-03-07 Island Garden City of Samal • converted from Mun of Samal
Babak, Samal, Kaputian merged to form Island Garden City of Samal
RA 8472 City of Tagum converted from Mun of Tagum
RA 8473 Braulio E. Dujali separated from Panabo, Carmen
Davao de Oro[edit]
Legal basis Effective Date Local government unit Actions Statistics

Davao del Sur[edit]

Legal basis Effective Date Local government unit Actions Statistics
RA 4867 1967-05-08 Sta. Cruz, Digos, Matanao, Bansalan, Hagonoy, Padada, Sulop, Malalag, Malita, Jose Abad Santos province of Davao del Sur created from division of province of Davao 10 municipalities
BP 47 1979-12-19 Don Marcelino separated from Malita
PD 1550 1978-06-11 Sarangani separated from Jose Abad Santos
RA 10360 2013-10-28 Sta. Maria, Malita, Don Marcelino, Jose Abad Santos, Sarangani separated to form province of Davao Occidental
Davao Occidental[edit]
Legal basis Effective Date Local government unit Actions Statistics
RA 10360 2013-10-28 Sta. Maria, Malita, Don Marcelino, Jose Abad Santos, Sarangani province of Davao Occidental separated from Davao del Sur 5 municipalities

Davao Oriental[edit]

Legal basis Effective Date Local government unit Actions Statistics
Municipality/City Province Inception Foundational text Separated from Part of / Merged into
Monkayo Davao de Oro (Compostela Valley)
Davao del Norte (Davao)
Davao
1954-09-14 Mun dis:
Mun: EO 65 (1954)

Compostela
Merged into Compostela 1948-08-01 (EO 156, 1948)
Matanao Davao del Sur
Davao
1957-06-22 RA 1902 Bansalan
Nabunturan Davao de Oro (Compostela Valley)
Davao del Norte (Davao)
Davao
1957-06-23 RA 2038 Compostela
Sulop Davao del Sur
Davao
1958-04-24 EO 295 (1958) Padada
Mawab Davao de Oro (Compostela Valley)
Davao del Norte (Davao)
Davao
1959-08-14 EO 351 (1959) Nabunturan, Tagum
Kaputian Davao del Norte (Davao)
Davao
1953-05-28 EO 184 (1965) Samal Merged into Samal City 1998-03-07 (RA 8471)
Santa Maria Davao Occidental
Davao del Sur
Davao
1966-06-18 RA 4743 Malalag
San Isidro Davao Oriental
Davao
1966-06-18 RA 4744 Governor Generoso
Kiblawan Davao del Sur
Davao
1966-06-18 RA 4748 Sulop
New Corella Davao del Norte (Davao)
Davao
1966-06-18 RA 4747 Asuncion

Cotabato[edit]

Legal basis Effective Date Local government unit Actions Statistics
Cotabato 1 municipality
_ municipal districts
EO 66 (1936) 1937-01-01 Dulawan Mun dists of Daguma, Isulan, Maganuy, Reina Regente, Talayan, southern Dulawan merged into Dulawan 3 municipalities
_ municipal districts
Midsayap Mun dists of Libuñgan, northern Dulawan merged into Midsayap
EO 82 (1947) 1947-08-18 Pagalungan Mun dists of Pikit-Pagalungan, Silik, Balatikan merged into Pagalungan 13 municipalities
Parang Mun dists of Parang, Bugasan, Buldun, Basira, & Bongo Island merged into Parang
Nuling Mun dists of Nuling, Gubpangan, Balut merged into Nuling
Kiamba Mun dists of Kiamba, Kling, Lebak merged into Kiamba
Buluan Mun dists of Buluan, Liguasan merged into Buluan
Kidapawan Mun dists of Kidapawan, Buluan (M'lang) merged into Kidapawan
Kabacan Mun dists of Kabakan, Carmen, Kitubud, Banisilan merged into Kabacan
Koronadal Mun dists of Koronadal, Sebu, Buluan (Malasila) merged into Koronadal
Buayan Mun dists of Buayan, Glan merged into Buayan
Dinaig Mun dists of Dinaig, Awang, Salaman merged into Dinaig
Cotabato Mun dists of Kalanganan, Tumbao, Gambar merged into Cotabato
EO 195 (1948) 1948-12-31 Lebak separated from Dinaig, Kiamba 14 municipalities
EO 227 (1949) 1949-06-16 Tumbao separated from Cotabato 15 municipalities
EO 250 (1949) 1949-07-27 Glan separated from Buayan 16 municipalities
EO 270 (1949) 1949-09-29 Pikit separated from Pagalungan 17 municipalities
EO 462 (1951) 1951-08-03 Tacurong separated from (Buluan) 19 municipalities
M'lang separated from (Buluan, Kidapawan)
EO 543 (1952) 1952-10-29 Lambayong separated from Dulawan 20 municipalities
EO 572 (1953) 1953-03-10 Norala separated from Dulawan 21 municipalities
EO 612 (1953) 1953-09-11 Banga separated from Koronadal, Dulawan 22 municipalities
EO 612 (1953) 1953-09-11 Tupi separated from Koronadal 23 municipalities
EO 622 (1953) 1953-09-30 Pigcawayan separated from Midsayap 24 municipalities
RA 1035 1954-06-12 Datu Piang renamed from Dulawan
RA 1107 1954-06-15 General Santos renamed from Buayan
EO 63 (1954) 1954-09-08 Makilala separated from Kidapawan 25 municipalities
EO 142 (1955) 1955-12-16 Upi separated from Dinaig 26 municipalities
EO 216 (1956) 1956-11-15 Carmen separated from Kabacan 27 municipalities
EO 264 (1957) 1957-08-21 Polomolok separated from General Santos, Tupi 28 municipalities
EO 266 (1957) 1957-08-30 Isulan separated from Datu Piang, Norala 29 municipalities
RA 2189 1959-05-07 Maitum separated from Kiamba 30 municipalities
RA 2364 1959-06-20 Cotabato City converted from Mun of Cotabato 1 city
29 municipalities
RA 2509 1959-06-21 Ampatuan separated from Datu Piang 1 city
30 municipalities
RA 2587 1959-06-21 Sultan sa Barongis renamed from Lambayong
EO 350 (1959) 1959-08-14 Palimbang separated from Lebak, Kiamba 1 city
31 municipalities
EO 414 (1961) 1961-01-27 Libungan separated from Midsayap, Carmen 1 city
32 municipalities
EO 415 (1961) 1961-01-27 Tantangan separated from Tacurong 1 city
33 municipalities
RA 3419 1961-06-18 Buldon separated from Parang 1 city
34 municipalities
EO 439 (1961) 1961-08-06 Columbio separated from Buluan 1 city
35 municipalities
EO 441 (1961) 1961-08-06 Tulunan separated from M'lang 1 city
36 municipalities
EO 459 (1961) 1961-12-29 Kalamansig separated from Lebak, Palimbang 1 city
37 municipalities
EO 461 (1961) 1961-12-29 Matalam separated from Kidapawan, Kabacan, M'lang 1 city
38 municipalities
RA 3721 1963-06-22 Magpet separated from Kidapawan 1 city
39 municipalities
RA 3420 1963-11-12 Surallah separated from Banga 1 city
40 municipalities
EO 47 (1963) 1963-11-12 Maganoy separated from Datu Piang 1 city
41 municipalities
EO 113 (1964) 1963-11-12 Maasim separated from Kiamba, General Santos 1 city
42 municipalities
EO 127 (1964) 1964-10-26 Tampakan separated from Tupi 1 city
43 municipalities
GR L-23825 1965-12-24 Maasim creation voided, reverted to Kiamba, General Santos 1 city
41 municipalities
Tampakan creation voided, reverted to Tupi
EO 187 (1965)
RA 5960
1965-10-24
1969-06-21
Bagumbayan separated from Isulan 1 city
42 municipalities
RA 4849 1966-06-18 Norala, Surallah, Banga, Tantangan, Koronadal, Tupi, Polomolok, Kiamba, Maitum, Maasim”, “Tampakan”, Glan, General Santos (as City of Rajah Buayan) separated to form province of South Cotabato 1 city
31 municipalities
RA 4868 1967-05-08 Lutayan separated from Buluan 1 city
32 municipalities
RA 4869 1967-05-08 President Roxas separated from Kidapawan 1 city
33 municipalities
RA 5645 1969-06-21 Alamada separated from Carmen, Libungan 1 city
34 municipalities
RA 5647 1969-06-21 Sultan Kudarat renamed from Nuling
PD 339 1973-11-22 President Quirino separated from Buluan 1 city
37 municipalities
Mariano Marcos separated from Sultan sa Barongis
Esperanza separated from Ampatuan
PD 340 1973-11-22 Datu Paglas separated from Columbio 1 city
38 municipalities
PD 341 1973-11-22 Pigcawayan, Libungan, Alamada, Midsayap, Kabacan, Carmen, Matalam, M'lang, Tulunan, Makilala, President Roxas, Magpet, Kidapawan, Pikit divided into province of North Cotabato 14 municipalities
Buldon, Parang, Sultan Kudarat, Tumbao, Upi, Dinaig, Datu Piang, Maganoy, Pagalungan, Buluan, Ampatuan, Sultan sa Barongis, Datu Paglas divided into province of Maguindanao 13 municipalities
Tacurong, Isulan, Lutayan, Bagumbayan, Kalamansig, Lebak, Columbio, Palimbang, President Quirino, Mariano Marcos, Esperanza divided into province of Sultan Kudarat 11 municipalities

South Cotabato[edit]

Legal basis Effective Date Local government unit Actions Statistics
RA 4849 1966-06-18 Norala, Surallah, Banga, Tantangan, Koronadal, Tupi, Polomolok, Kiamba, Maitum, Maasim”, “Tampakan”, Glan, General Santos (as City of Rajah Buayan) province created from Cotabato “11” municipalities
RA 5412 1968-06-15 General Santos City Converted from Mun of General Santos 1 city
“10” municipalities
RA 5522 1969-06-21 Malungon separated from General Santos 1 city
“11” municipalities
RA 5661 1969-06-21 Tampakan separated from Tupi 1 city
“12” municipalities
RA 5823 1969-06-21 Malapatan separated from Glan 1 city
“13” municipalities
RA 5866 1969-06-21 Maasim separated from Kiamba, General Santos 1 city
14 municipalities
RA 6393 1971-06-10 Alabel separated from General Santos City 1 city
15 municipalities
PD 407 1974-03-05 TBoli separated from Surallah, Banga, Tupi, Polomolok, Maasim, Kiamba, Maitum 1 city
16 municipalities
BP 90 1980-12-23 Santo Niño separated from Norala, Banga 1 city
17 municipalities
BP 249 1982-11-11 Lake Sebu separated from Tboli, Surallah 1 city
18 municipalities
RA 7228 1992-05-19 Alabel, Glan, Maasim, Maitum, Malapatan, Malungon, Kiamba separated to from province of Sarangani 1 city
11 municipalities
RA 8803 2000-08-16 Koronadal City Converted from Mun of Koronadal 2 cities
10 municipalities
Sarangani[edit]
Legal basis Effective Date Local government unit Actions Statistics
RA 7228 1992-05-19 Alabel, Glan, Maasim, Maitum, Malapatan, Malungon, Kiamba province created from South Cotabato 7 municipalities

Cotabato (North)[edit]

Legal basis Effective Date Local government unit Actions Statistics
PD 341 1973-11-22 Pigcawayan, Libungan, Alamada, Midsayap, Kabacan, Carmen, Matalam, M'lang, Tulunan, Makilala, President Roxas, Magpet, Kidapawan, Pikit Province of North Cotabato created from Cotabato 14 municipalities
BP 88 1980-10-14 Antipas separated from Matalam 15 municipalities
BP 141 1982-02-08 Banisilan separated from Carmen 16 municipalities
BP 206 1982-03-25 Aleosan separated from Pikit 17 municipalities
BP 660 1984-03-07 province renamed to Cotabato
RA 7152 1991-08-30 Arakan separated from Magpet 18 municipalities
RA 8500 1998-03-20 City of Kidapawan converted from Mun of Kidapawan 1 city
17 municipalities

Sultan Kudarat[edit]

Legal basis Effective Date Local government unit Actions Statistics
PD 341 1973-11-22 Tacurong, Isulan, Lutayan, Bagumbayan, Kalamansig, Lebak, Columbio, Palimbang, President Quirino, Mariano Marcos, Esperanza province created from Cotabato 11 municipalities
RA 6676 1988-10-17 Lambayong renamed from Mariano Marcos
RA 6712 1989-02-17 Senator Ninoy Aquino separted from Kalamansig, Bagumbayan 12 municipalities
RA 8805 2000-08-16 City of Tacurong converted from Mun of Tacurong 1 city
11 municipalities

Maguindanao[edit]

Legal basis Effective Date Local government unit Actions Statistics
PD 341 1973-11-22 Buldon, Parang, Sultan Kudarat, Tumbao, Upi, Dinaig, Datu Piang, Maganoy, Pagalungan, Buluan, Ampatuan, Sultan sa Barongis, Datu Paglas province created from Cotabato 13 municipalities
PD 780, PD 1260 1975-08-25 Matanog separated from Parang 14 municipalities
PD 1009 1976-09-22 Talayan separated from Datu Piang, Dinaig 15 municipalities
PD 1010 1976-09-22 Kabuntalan renamed from Tumbao
PD 1188 1977-08-29 Barira separated from Buldon 16 municipalities
PD 1011, PD 1580 1976-09-22 South Upi separated from Upi 17 municipalities
MMAA 3 1991-01-28 General S. K. Pendatun separated from Buluan 18 municipalities
MMAA 29 1994-10-14 Datu Odin Sinsuat renamed from Dinaig
MMAA 45 1996-02-07 Shariff Aguak renamed from Maganoy
MMAA 52 1996-08-30 Talitay separated from Talayan 19 municipalities
MMAA 54 1997-08-11 Mamasapano separated from Shariff Aguak 20 municipalities
MMAA 89 1999-11-13 Sultan Mastura separated from Sultan Kudarat 21 municipalities
MMAA 95 2000-07-18 Pagagawan separated from Pagalungan 22 municipalities
MMAA 112 2001-07-22 Paglat separated from Gen. S. K. Pendatun 23 municipalities
MMAA 139 2003-03-21 Guindulungan separated from Talayan 24 municipalities
MMAA 150 2003-06-09 Datu Unsay separated from Shariff Aguak 25 municipalities
MMAA 151 2003-06-09 Datu Saudi Ampatuan separated from Datu Piang 26 municipalities
MMAA 152 2003-06-09 Datu Montawal renamed from Pagagawan
MMAA 153 2003-08-20 Datu Abdullah Sangki separated from Ampatuan 27 municipalities
MMAA 166 2004-07-16 Rajah Buayan separated from Sultan sa Barongis 28 municipalities
MMAA 201 2006-10-28 Barira, Buldon, Datu Odin Sinsuat, Kabuntalan, Matanog, Parang, Sultan Kudarat, Sultan Mastura, Upi separated to form province of Shariff Kabunsuan 19 municipalities
MMAA 204 2006-11-23 Pandag separated from Buluan 20 municipalities
MMAA 205 2006-11-23 Mangudadatu separated from Buluan 21 municipalities
MMAA 207 2006-11-23 Datu Anggal Midtimbang separated from Talayan, Talitay 22 municipalities
MMAA 220 2008-04-15 Datu Hoffer Ampatuan separated from Shariff Aguak, Datu Unsay 23 municipalities
MMAA 222 2008-04-16 Datu Salibo separated from Datu Saudi Ampatuan, Datu Piang 24 municipalities
MMAA 225, 252 2008-04-16 Shariff Saydona Mustapha separated from Shariff Aguak, Mamasapano, Datu Unsay, Datu Piang, Datu Saudi Ampatuan 25 municipalities
MMAA 228 2008-04-06 Sultan Sumagka renamed from Talitay
G.R. 177597, 178628 2008-07-16 Barira, Buldon, Datu Odin Sinsuat, Kabuntalan, Matanog, Parang, Sultan Kudarat, Sultan Mastura, Upi, Datu Blah T. Sinsuat, Northern Kabuntalan province of Shariff Kabunsuan creation voided, reverted to Maguindanao 36 municipalities
RA 11550 2022-06-22 Barira, Buldon, Datu Blah T. Sinsuat, Datu Odin Sinsuat, Kabuntalan, Matanog, Northern Kabuntalan, Parang, Upi, Sultan Kudarat, Sultan Mastura, Sultan Sumagka divided into province of Maguindanao del Norte 12 municipalities
Ampatuan, Buluan, Datu Abdullah Sangki, Datu Anggal Midtimbang, Datu Hoffer Ampatuan, Datu Montawal, Datu Paglas, Datu Piang, Datu Salibo, Datu Saudi Ampatuan, Datu Unsay, General S. K. Pendatun, Mangudadatu, Guindulungan, Mamasapano, Mangudadatu, Pagalungan, Paglat, Pandag, Rajah Buayan, Shariff Aguak, Shariff Saydona Mustapha, Sultan sa Barongis, Talayan, South Upi divided into province of Maguindanao del Sur 24 municipalities
Shariff Kabunsuan[edit]
Legal basis Effective Date Local government unit Actions Statistics
MMAA 201 2006-10-28 Barira, Buldon, Datu Odin Sinsuat, Kabuntalan, Matanog, Parang, Sultan Kudarat, Sultan Mastura, Upi province of Shariff Kabunsuan created from Maguindanao 9 municipalities
MMAA 198 2005-10-24 Datu Blah T. Sinsuat separated from Upi 10 municipalities
MMAA 206 2006-11-23 Northern Kabuntalan separated from Kabuntalan 11 municipalities
G.R. 177597, 178628 2008-07-16 Barira, Buldon, Datu Odin Sinsuat, Kabuntalan, Matanog, Parang, Sultan Kudarat, Sultan Mastura, Upi, Datu Blah T. Sinsuat, Northern Kabuntalan creation of province of Shariff Kabunsuan voided, reverted to Maguindanao
Maguindanao del Norte[edit]
Legal basis Effective Date Local government unit Actions Statistics
RA 11550 2022-06-22 Barira, Buldon, Datu Blah T. Sinsuat, Datu Odin Sinsuat, Kabuntalan, Matanog, Northern Kabuntalan, Parang, Upi, Sultan Kudarat, Sultan Mastura, Sultan Sumagka created, province of Maguindanao del Norte 12 municipalities
Maguindanao del Sur[edit]
Legal basis Effective Date Local government unit Actions Statistics
RA 11550 2022-06-22 Ampatuan, Buluan, Datu Abdullah Sangki, Datu Anggal Midtimbang, Datu Hoffer Ampatuan, Datu Montawal, Datu Paglas, Datu Piang, Datu Salibo, Datu Saudi Ampatuan, Datu Unsay, General S. K. Pendatun, Mangudadatu, Guindulungan, Mamasapano, Mangudadatu, Pagalungan, Paglat, Pandag, Rajah Buayan, Shariff Aguak, Shariff Saydona Mustapha, Sultan sa Barongis, Talayan, South Upi created, province of Maguindanao del Sur 24 municipalities

Lanao[edit]

Legal basis Effective Date Local government unit Actions Statistics
EO 37 (1936) 1936-07-01 Kolambugan
Municipal districts of Kolambugan, Buruun
Municipal districts of Kolambugan, Buruun merged to form municipality of Kolambugan
CA 592 1940-08-19 City of Dansalan converted from municipality + 1 city, -1 municipality
RA 58 1946-10-17 Tubod separated from Kolambugan
RA 1415 1956-05-10 Bacolod separated from Kolambugan
RA 1537 1956-06-16 Municipal district of Tangcal separated from Kolambugan
RA 1552 1956-06-15 City of Marawi renamed from City of Dansalan

Lanao del Sur[edit]

Legal basis Effective Date Local government unit Actions Statistics
RA 3624 1963-06-22 Municipal district of Pagayawan renamed from Municipal district of Tatarikan
EO 42 (1963) 1962-07-01 Bacolod Grande, Balindong, Bayang, Binidayan, Bubong, Butig, Lumbatan, Madamba, Marantao, Masiu, Mulondo, Poona Bayabao, Pualas, Ramain, Saguiaran, Taraka, Tatarikan, Tubaran, Tugaya converted from municipal districts +19 municipalities, -19 municipal districts
PD 1135 1977-05-04 Sultan Gumander separated from Malabang
PD 1243 1977-11-17 Bumbaran separated from Wao
MMAA 32 1994-11-23 Bacolod-Kalawi renamed from Bacolod Grande
MMAA 36 1995-07-04 Sultan Dumalondong separated from Butig, Lumbatan, Lumbayanague
MMAA 106 2001-01-11 Lumbaca-Unayan separated from Bayang, Lumbatan
MMAA 175 2004-12-16 Picong renamed from Sultan Gumander
MMAA 316 2015-01-22 Amai Manabilang renamed from Bumbaran

Sulu[edit]

Legal basis Effective Date Local government units Actions Statistics
Jolo 1 municipality
EO 95 (1947) 1947-10-13 Special municipal district of Turtle Islands organized acquired territory
EO 130 (1948) 1948-04-21 Municipal district of Turtle Islands converted from Special municipal district
EO 355 (1959) 1958-07-01 Balimbing, Bongao, Cagayan de Sulu, Indanan, Luuk, Maimbung, Panamao, Pangutaran, Parang, Pata, Patikul, Siasi, Simunul, Sitangkai, South Ubian, Talipao, Tandubas, Tapul, Tongkil, Turtle Islands converted from municipal districts 21 municipalities
1 municipal district
PD 302 1973-09-27 South Ubian, Tandubas, Simunul, Sitangkai, Balimbing, Bongao, Cagayan de Sulu, Turtle Islands separated to form province of Tawi-Tawi 13 municipalities
1 municipal district
PD 838, PD 889 1975-12-06 Kalingalan Caluang separated from Luuk
Seat of gov't: Brgy. Karungdong
14 municipalities
1 municipal district
PD 1734 1980-10-23 Lugus separated from Tapul
Seat of gov't: Brgy. Alu
15 municipalities
1 municipal district
PD 1663, PD 1757 1980-01-01 New Panamao separated from Panamao
Seat of gov't: Brgy. Punay
16 municipalities
1 municipal district
PD 1757 1981-01-02 Panglima Estino reconstituted, renamed from New Panamao
BP 324 1982-11-30 Pandami separated from Siasi
Seat of gov't: Brgy. Lapak
17 municipalities
[RA 7160, §442(d)] (1992-01-01) Marungas converted from municipal district 18 municipalities
1995? Hadji Panglima Tahil renamed from Marungas
MMAA 71 1999-01-29 Banguingui renamed from Tongkil
MMAA 194 2007-06-18 Omar separated from Luuk 19 municipalities

Tawi-Tawi[edit]

Legal basis Effective Date Local government units Actions Statistics
PD 302 1973-09-27 South Ubian, Tandubas, Simunul, Sitangkai, Balimbing, Bongao, Cagayan de Sulu, Turtle Islands created, province of Tawi-Tawi 8 municipalities
PD 1086 1977-02-04 Languyan separated from Bongao, Tandubas, South Ubian
Seat of gov't: Brgy. Languyan Proper
9 municipalities
PD 1087 1977-02-04 Sapa-Sapa separated from Tandubas
Seat of gov't: Brgy. Sapa-Sapa
10 municipalities
BP 647 1984-03-07 Cagayan de Tawi-Tawi renamed from Cagayan de Sulu
RA 6672 1988-09-05 Mapun renamed from Cagayan de Tawi-Tawi
MMAA 7 1991-09-09 Panglima Sugala renamed from Balimbing
MMAA 197 2006-10-21 Sibutu separated from Sitangkai 11 municipalities

Zamboanga[edit]

Legal basis Effective Date Local government units Actions Statistics
Act 135 1901-05-29 Tetuan merged into Zamboanga 5 municipalities
EO 10 (1921) formed political subdivisions of Zambonga:
Act 2657 1916-12-31 Dapitan, Dipolog, Isabela, Lubungan, Zamboanga municipalities as of Administrative Code 5 municipalities
EO 70 (1927) 1927-08-01 amended EO 10 (1921)
EO 135 (1928) 1927-08-01 Municipal distric of Bangaan, Dinas, Kabasalan, Labangan, Lamitan, Malangas, Maluso, Margosatubig, Panganuran, Sibuko, Sindangan, Sirawai, Taluksangay amended EO 70 (1927) 5 municipalities, 13 municipal districts
EO 182 (1929) 1929-08-01 Bolong separated from Municipal district of Taluksangay 6 municipalities, 13 municipal districts
Act 3842 1931-11-09 Katipunan renamed from Lubungan
CA 39 1936-10-12 City of Zamboanga, Bolong, Isabela,
Municipal districts of Taluksangay, Lamitan, Maluso
• converted from municipality
Bolong, Isabela, municipal districts of Taluksangay, Lamitan, Maluso merged into City of Zamboanga
1 city, 3 municipalities, 10 municipal districts
EO 77 (1936) 1937-01-01 Municipal districts of Panganuran, Sindangan/ Sindangan Municipal districts of Panganuran, Sindangan merged to form Sindangan 8 municipalities
Pagadian Municipal district of Labangan, Dinas merged to form Pagadian
Siocon Mun dists of Sibuko, Sirawai merged to form Siocon
Margosatubig Mun dists of Margosatubig, Malangas merged to form Margosatubig
Kabasalan Mun dists of Kabasalan, Bangaan merged to form Kabasalan
EO 353 (1941) 1942-01-01 Aurora separated from Pagadian
Seat of govt: Bo. Cebuano Barracks
9 municipalities
EO 79 (1947) 1948-01-01 Labason separated from Sindangan
Seat of govt: Bo. Labason
10 municipalities
RA 286 1948-06-16 Molave separated from (Aurora?) 11 municipalities
RA 288 City of Basilan • separated from City of Zamboanga
fmr Mun of Isabela, fmr Mun districts of Lamitan, Maluso merged into City of Basilan
EO 245 (1949) 1949-07-20 Labangan separated from Pagadian
Seat of govt: Bo. Labangan
12 municipalities
EO 249 (1949) 1949-07-26 Ipil separated from Kabasalan
Seat of govt: Bo. Sanito
13 municipalities
RA 555 1950-06-17 Dimataling separated from Pagadian, Margosatubig
Seat of govt: Bo. Dimataling
14 municipalities
EO 362 (1950) 1950-11-10 Dinas separated from Dimataling
Seat of govt: Bo. Dinas
15 municipalities
EO 385 (1950) 1950-12-21 Rizal separated from Dapitan
Seat of govt: Bo. New Tolon
16 municipalities
RA 654 1951-06-16 Malangas separated from Margosatubig
Seat of govt: n.a.
17 municipalities
RA 655 Manukan separated from Katipunan
Seat of govt: n.a.
18 municipalities
EO 467 (1951) 1951-08-22 Polanco, New Piñan separated from Dipolog
Seat of govt: Bo. Polanco (Polanco), New Piñan (New Piñan)
20 municipalities
EO 468 (1951) Alicia separated from Margosatubig
Seat of govt: Bo. Naga-Naga
21 municipalities
EO 469 (1951) Liloy separated from Sindangan
Seat of govt: Bo. Liloy
22 municipalities

Zamboanga del Norte[edit]

Legal basis Effective Date Local government units Actions Statistics
RA 711 1952-06-06 Dapitan, Rizal, Dipolog, Katipunan, Sindangan, Labason, Siocon, Polanco, New Piñan, Liloy, Manukan Zamboanga del Norte created from division of Zamboanga, Capital: Dipolog 11 municipalities
RA 2192 1959-05-07 La Libertad separated from Rizal
Seat of govt: Bo. La Libertad
12 municipalities
RA 2195 Sibuco separated from Siocon
Seat of govt: Bo. Sibuco
13 municipalities
RA 2510 1959-06-21 Salug separated from Liloy
Seat of govt: Bo. Salug
14 municipalities
EO 344 (1959) 1959-07-09 Sibutad separated from Dapitan
Seat of govt: Bo. Sibutad
15 municipalities
RA 2846 1960-06-19 Piñan renamed from New Piñan
EO 402 (1960) 1960-07-22 Mutia separated from New Piñan
Seat of govt: Bo. Salvacion
16 municipalities
RA 3697 1963-06-22 Sergio Osmeña separated from Piñan
Seat of govt: Bo. Sibulan
17 municipalities
EO 114 (1964) 1964-10-01 Siayan separated from Sindangan
Seat of govt: Bo. Siayan
18 municipalities
EO 115 (1964) Roxas separated from Katipunan
Seat of govt: Bo. Langatian
19 municipalities
EO 116 (1964) Panganuran separated from Labason
Seat of govt: Bo. Gutalac
20 municipalities
GR L-23825 1965-12-24 Siayan, Roxas, Panganuran creation declared null and void 17 municipalities
RA 3811 1968-11-08 City of Dapitan converted from municipality 1 city, 16 municipalities
RA 4989 1967-06-17 Siayan separated from Sindangan
Seat of govt: Bo. Siayan
1 city, 17 municipalities
RA 5077 President Manuel A. Roxas separated from Katipunan
Seat of govt: Bo. Tangian
1 city, 18 municipalities
RA 5234 1968-06-15 Sirawai separated from Siocon
Seat of govt: Brgy. Siraway
1 city, 19 municipalities
RA 5520 1970-01-01 City of Dipolog converted from municipality 2 cities, 18 municipalities
BP 14 1979-03-22 Tampilisan separated from Liloy
Seat of govt: Brgy. Ponot
2 cities, 19 municipalities
BP 15 1979-04-03 Ponot separated from Manukan
Seat of govt: Brgy. Ponot
2 cities, 20 municipalities
BP 79 1979-04-17 Gutalac separated from Labason
Seat of govt: Brgy. Gutalac
2 cities, 21 municipalities
BP 101 1981-04-07 Baliguian separated from Siocon
Seat of govt: Brgy. Baliguian
2 cities, 22 municipalities
BP 146 1982-05-17 Godod separated from Salug
Seat of govt: Brgy. Godod
2 cities, 23 municipalities
BP 204 Bacungan separated from Sindangan
Seat of govt: Brgy. Bacungan
2 cities, 24 municipalities
BP 381 1983-04-08 Jose Dalman renamed from Ponot
RA 6830 1989-12-30 Leon B. Postigo renamed from Bacungan
RA 6851 1990-05-26 Kalawit separated from Labason
Seat of govt: Brgy. Kalawit
2 cities, 25 municipalities

Zamboanga del Sur[edit]

Legal basis Effective Date Local government units Actions Statistics
RA 711 1952-09-17 Molave, Aurora, Labangan, Pagadian, Dimataling, Margosatubig, Ipil, Kabasalan, Dinas, Malangas, Alicia Zamboanga del Sur created from division of Zamboanga, Capital: Pagadian 11 municipalities
RA 1593 1956-06-16 Dumalinao separated from Pagadian
Seat of govt: Bo. Dumalinao Proper
12 municipalities
EO 223 (1956) 1956-12-28 Siay separated from Kabasalan, Malangas
Seat of govt: Bo. Siay
13 municipalities
EO 222 (1956), EO 239 (1957) 1957-04-10 Liargao separated from Aurora
Seat of govt: Bo. Liargao
14 municipalities
EO 268 (1957) 1957-09-17 San Pablo separated from Dinas
Seat of govt: Bo. San Pablo
15 municipalities
EO 273 (1957) 1957-10-16 Lapuyan separated from Margosatubig
Seat of govt: Bo. Lapuyan
16 municipalities
EO 274 (1957) 1957-10-16 Olutanga separated from Alicia
Seat of govt: Bo. Suba Nipa
17 municipalities
EO 282 (1957) 1957-12-27 Tambulig separated from Molave, Aurora
Seat of govt: Bo. Tambulig
18 municipalities
EO 283 (1957) 1957-12-27 Dumingag separated from Molave
Seat of govt: Bo. Dumingag
19 municipalities
EO 356 (1959) 1959-08-28 Kumalarang separated from Lapuyan, Malangas
Seat of govt: Bo. Kumalarang
20 municipalities
EO 380 (1960) 1960-02-26 Buug separated from Malangas
Seat of govt: Bo. Buug
21 municipalities
EO 393 (1960) 1960-05-10 Mahayag separated from Molave, Dumingag
Seat of govt: Bo. Mahayag
22 municipalities
EO 395 (1960) 1960-05-24 Tungawan, Titay separated from Ipil
Seat of govt: Bo. Tungawan (Tungawan); Bo. Titay (Titay)
24 municipalities
EO 400 (1960) 1960-07-14 San Miguel separated from Dinas
Seat of govt: Bo. San Miguel
25 municipalities
RA 2788 1960-06-19 Ramon Magsaysay renamed from Liargao
EO 443 (1961) 1961-08-16 Tabina separated from Dimataling
Seat of govt: Bo. Tabina
26 municipalities
EO 93 (1964) 1964-09-04 Nilo separated from Dumalinao, Pagadian
Seat of govt: Bo. Nilo
EO 94 (1964) Midsalip separated from Ramon Magsaysay, Dumingag
Seat of govt: Bo. Midsalip
EO 95 (1964) Pitogo separated from Dimataling, Tabina
Seat of govt: Bo. Pitogo
EO 96 (1964) Maruing separated from Lapuyan
Seat of govt: Bo. Maruing
EO 97 (1964) Naga separated from Kabasalan
Seat of govt: Bo. Naga
EO 112 (1964) 1964-10-01 Bayog separated from Buug
Seat of govt: Bo. Bayog
EO 120 (1964) Libertad separated from Dimataling, Margosatubig, Dinas
Seat of govt: Bo. Libertad
EO 121 (1964) 1964-10-31 General Aguinaldo separated from San Miguel, Dumalinao, San Pablo, Dinas
Seat of govt: Bo. Guipos
GR L-23825 1965-12-24 Nilo, Midsalip, Pitogo, Maruing, Naga, Bayog, Libertad, General Aguinaldo creation declared null and void
RA 4871 1967-05-08 Midsalip separated from Ramon Magsaysay, Dumingag
Seat of govt: Bo. Midsalip
27 municipalities
RA 4872 1967-05-08 Bayog separated from Buug
Seat of govt: Bo. Bayog
28 municipalities
RA 4875 1967-05-18 Naga separated from Kabasalan
Seat of govt: Bo. Naga
29 municipalities
RA 4876 1967-05-18 Mabuhay separated from Olutanga
Seat of govt: Brgy. Mabuhay
30 municipalities
RA 5478 1969-06-21 City of Pagadian converted from municipality 1 city, 29 municipalities
RA 6490 1972-06-17 Pitogo separated from Dimataling
Seat of govt: Bo. Pitogo
1 city, 30 municipalities
PD 1236 1977-11-11 Lakewood separated from Kumalarang, Lapuyan
Seat of govt: Brgy. Lakewood
1 city, 31 municipalities
PD 1237 Talusan separated from Mabuhay
Seat of govt: Brgy. Talusan
1 city, 32 municipalities
PD 1238 Payao separated from Siay
Seat of govt: Brgy. Payao
1 city, 33 municipalities
PD 1239 Imelda separated from Malangas, Siay, Alicia
Seat of govt: Brgy. Sta. Fe
1 city, 34 municipalities
PD 1240 Josefina separated from Tambulig
Seat of govt: Brgy. Gumahan
1 city, 35 municipalities
BP 48 1980-12-21 Diplahan separated from Malangas, Buug, Siay
Seat of govt: Brgy. Diplahan
1 city, 36 municipalities
BP 60 1980-09-22 Don Mariano Marcos separated from Midsalip, Ramon Magsaysay, Mahayag, Dumingag, Tukuran
Seat of govt: Brgy. Sominot
1 city, 37 municipalities
BP 173 1982-05-17 Vincenzo Sagun separated from Margosatubig
Seat of govt: Brgy. Cabatan
1 city, 38 municipalities
BP 183 Roseller Lim separated from Ipil
Seat of govt: Brgy. Surabay
1 city, 39 municipalities
RA 6684 1988-12-04 Sominot renamed from Don Mariano Marcos 1 city, 40 municipalities
RA 7159 1991-10-07 Guipos separated from San Miguel, Dumalinao, Dinas, San Pablo
Seat of govt: Brgy. Guipos
1 city, 41 municipalities
RA 7162 1991-11-08 Tigbao separated from Dumalinao
Seat of govt: Brgy. Tigbao
1 city, 42 municipalities
RA 8973 2001-02-24 Buug, Diplahan, Malangas, Imelda, Alicia, Mabuhay, Olutanga, Talusan, Payao, Siay, Kabasalan, Naga, Ipil, Titay, Roseller T. Lim, Tungawan separated to form province of Zamboanga Sibugay 1 city, 26 municipalities
Basilan[edit]
Legal basis Effective Date Local government units Actions Statistics
PD 356 1973-12-27 City of Basilan province of Basilan created, converted City of Basilan 1 city, 3 municipalities
Isabela, Lamitan, Maluso separated from City of Basilan
PD 593 1974-12-02 Lantawan, Sumisip, Tipo-Tipo, Tuburan, Tapiantana, Malamawi, Pilas amended PD 356, province divided into 10 municipalities 1 city, 10 municipalities
PD 840 1975-12-11 City of Basilan, Malamawi, Pilas, Tapiantana City of Basilan, Malamawi merged into Isabela
Pilas merged into Lantawan
Tapiantana merged into Sumisip
7 municipalities
RA 9023 2001-04-25 City of Isabela converted from Mun of Isabela 1 city, 6 municipalities
MMAA 190 2006-05-22 Ungkaya Pukan separated from Tipo-Tipo 1 city, 10 municipalities
MMAA 191 Al-Barka
MMAA 192 Hadji Mohammad Ajul separated from Tuburan
MMAA 193 Akbar
MMAA 200 2007-08-25 Hadji Muhtamad separated from Lantawan 1 city, 11 municipalities
RA 9393 2007-06-18 City of Lamitan converted from Mun of Lamitan 2 cities, 10 municipalities
MMAA 187 2008-03-29 Tabuan-Lasa separated from Sumisip 2 cities, 11 municipalities
Zamboanga Sibugay[edit]
Legal basis Effective Date Local government units Actions Statistics
RA 8973 2001-02-24 Buug, Diplahan, Malangas, Imelda, Alicia, Mabuhay, Olutanga, Talusan, Payao, Siay, Kabasalan, Naga, Ipil, Titay, Roseller T. Lim, Tungawan province of Zamboanga Sibugay created from Zamboanga del Sur 16 municipalities