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Province

Isabela

Isabela is a province in the Cagayan Valley region of Luzon, Philippines. Its population was 1,733,048 in the 2024 census, and it has 3 cities and 34 municipalities.

  • Population: 2024 Census
  • Places: PSGC 2Q 2026
  • Checked by Scene: October 8, 2026
  • Page updated: October 8, 2026
A red-brick baroque church with an ornate carved facade and a round window, beside a tall white cylindrical bell tower, framed by trees under a blue sky.
The Church of Saint Matthias and its round bell tower, in Tumauini.Photo: “Allan Jay Quesada - Tumauini Cathedral - afternoon exterior DSC 0158” by Allan Jay Quesada, CC BY-SA 4.0, via Wikimedia Commons; resized by Scene. Scene's copy is shared under the same licence.

  • PeopleSources

    1,733,048

    people counted in the 2024 censusCensusA count of every person in the country, all on one day. The 2024 census counted people as they were on 1 July 2024.More in the glossary

    Up 16.3% from 2010 to 2024

  • Rank by peopleSources

    1st

    of the 5 provinces of Cagayan Valley by population, 2024Rank and shareWorked out by Scene from the PSA's counts: where a place stands among the places listed with it, and how many of every 100 of its parent's people live in it.More in the glossary

    About 46 of every 100 people in Cagayan Valley lived in Isabela in 2024 (45.88%)

  • Inside itSources

    37

    cities and municipalities

    1,055 barangays

  • LandSources

    12,602.70 km²

    of land, 2019 masterlistLand areaThe land inside the place's official boundary. A square kilometre is a square 1 km on each side, about the size of 140 football fields.Explained by Scene: Isabela's land would fill a square about 112.3 km on each side. That is only a way to picture its size: its real shape is on the map.More in the glossary

    Average density, 2024: 138 people per km²Population densityHow crowded a place is on average: its people divided by its land area. 1,000 people per square kilometre is 10 people per hectare, a square of 100 by 100 metres.Explained by Scene: About 1 person per hectare if everyone were spread evenly across the land. In fact people live closer together in towns and farther apart in the countryside.More in the glossary

  • HomesSources

    460,261

    households in 2024HouseholdA person living alone, or people who sleep in the same home and share their meals. A family may be one household or several.More in the glossary

    3.8 people in each, on average, in 2024

  • Town or countrySources

    20.9%

    About 21 of every 100 people lived in urban barangays in 2024Urban barangayThe PSA counts a barangay as urban when it has 5,000 people or more, or a big employer, or several businesses and public services close by. Every barangay in Metro Manila is urban.More in the glossary

PSGC codePSGC codeThe code the Philippine Statistics Authority gives every place, so each one is known exactly, even when two share a name.More in the glossary
0203100000[4]Formerly 023100000

People

Isabela had 1,733,048 people in the 2024 census, up 16.3% from 2010.
People at each census since 1960

Counts from 2000 on are on today’s borders; earlier counts are as the place was then, so the line may step where a border moved.

Isabela had the most people of the 5 provinces of Cagayan Valley in 2024[1]
  1. 1Isabela1,733,048
  2. 2Cagayan1,284,676
  3. 3Nueva Vizcaya530,106
  4. 4Quirino210,841
  5. 5Batanes18,937
All 5 provinces of Cagayan Valley
Of every 100 people in Isabela in 2024[1]
Age structure · 2024 Census[5]People living in households, by age and sex
  • About 25 of every 100 are children under 15 (25%)
  • About 68 of every 100 are of working age, 15 to 64 (67.6%)
  • About 7 of every 100 are 65 or older (7.3%)
MenWomen

The figures by age

People by age group, men and women
AgePeopleMenWomen
Under 5120,49262,36358,129
5 - 9146,26776,39169,876
10 - 14166,74086,42780,313
15 - 19164,66884,96279,706
20 - 24150,66877,43073,238
25 - 29139,69471,88567,809
30 - 34138,34271,01567,327
35 - 39119,63861,38158,257
40 - 44112,96158,22654,735
45 - 49102,32552,73249,593
50 - 5492,24647,30044,946
55 - 5979,65239,79939,853
60 - 6470,34234,52935,813
65 - 6952,79125,01827,773
70 - 7435,82915,57020,259
75 - 7919,4847,63911,845
80 - 8410,6423,5847,058
85 and over8,0612,2205,841

Every figure, census by census

People, 2024 CensusCensusA count of every person in the country, all on one day. The 2024 census counted people as they were on 1 July 2024.More in the glossary
1,733,048[1, 2]
Households, 2024HouseholdA person living alone, or people who sleep in the same home and share their meals. A family may be one household or several.More in the glossary
460,261[1, 2]
People in each household, 2024
3.8 on average[1, 2]
Share of Cagayan Valley, 2024Rank and shareWorked out by Scene from the PSA's counts: where a place stands among the places listed with it, and how many of every 100 of its parent's people live in it.More in the glossary
45.88%[1]
In urban barangays, 2024Urban barangayThe PSA counts a barangay as urban when it has 5,000 people or more, or a big employer, or several businesses and public services close by. Every barangay in Metro Manila is urban.More in the glossary
20.9% (362,728 people)[6]
Men and women, 2024
878,471 men, 852,371 women[5]People living in households
Population at each census, with its source
CensusPopulationGrowth since the census beforeHouseholdsPeople per household
2024as of July 1, 20241,733,048[1, 2]0.50% a year460,2613.8
2020as of May 1, 20201,697,050[1]1.33% a year——
2015as of August 1, 20151,593,566[1]1.29% a year——
2010as of May 1, 20101,489,645[1]———
2007as of August 1, 2007; as it was then1,401,495[33]1.18% a year——
2000as of May 1, 2000; on today’s borders1,287,575[33, 34]2.25% a year——
1995as of September 1, 1995; as it was then1,160,721[33]1.35% a year——
1990as of May 1, 1990; as it was then1,080,341[33]2.18% a year——
1980as of May 1, 1980; as it was then870,604[33]3.57% a year——
1975as of May 1, 1975; as it was then730,386[33]2.42% a year——
1970as of May 6, 1970; as it was then648,123[33]3.81% a year——
1960as of February 15, 1960; as it was then442,062[33]———

Cities and municipalities

Isabela is made up of 34 municipalities, 2 cities and Santiago City, with 1,055 barangays in all. Santiago City lies within it but governs itself apart from the province.
Colour byColours the map of Isabela by the figure chosen; the key beside it says what each colour means.
AuroraCagayanIfugaoKalingaMountain ProvinceNueva VizcayaQuirinoAlicia: 74,699 people, 541 per km², 0.27% a yearAngadanan: 45,970 people, 226 per km², 0.53% a yearAurora: 37,191 people, 509 per km², 0.37% a yearBenito Soliven: 30,682 people, 155 per km², 0.74% a yearBurgos: 26,729 people, 463 per km², 0.63% a yearCabagan: 55,445 people, 134 per km², 0.68% a yearCabatuan: 40,223 people, 507 per km², 0.14% a yearCauayan City: 143,539 people, 427 per km², 0.02% a yearIlagan City: 164,020 people, 221 per km², 0.87% a yearSantiago City: 150,313 people, 907 per km², 0.28% a yearCordon: 46,688 people, 199 per km², 0.11% a yearDelfin Albano: 30,860 people, 163 per km², 0.74% a yearDinapigue: 6,116 people, 6 per km², 1.19% a yearDivilacan: 5,871 people, 7 per km², 0.18% a yearEchague: 91,320 people, 141 per km², 0.78% a yearGamu: 30,850 people, 291 per km², 0.15% a yearJones: 46,160 people, 69 per km², 0.28% a yearLuna: 21,015 people, 468 per km², 0.37% a yearMaconacon: 4,252 people, 8 per km², 1.62% a yearMallig: 32,509 people, 273 per km², 0.22% a yearNaguilian: 34,520 people, 203 per km², 0.52% a yearPalanan: 18,091 people, 21 per km², 0.55% a yearQuezon: 28,376 people, 135 per km², 1.17% a yearQuirino: 25,205 people, 200 per km², 0.17% a yearRamon: 57,412 people, 309 per km², 0.37% a yearReina Mercedes: 28,222 people, 494 per km², 0.28% a yearRoxas: 66,593 people, 488 per km², 0.27% a yearSan Agustin: 22,228 people, 73 per km², 0.14% a yearSan Guillermo: 21,043 people, 46 per km², 0.15% a yearSan Isidro: 27,326 people, 432 per km², 0.25% a yearSan Manuel: 34,740 people, 279 per km², 0.46% a yearSan Mariano: 61,876 people, 42 per km², 0.69% a yearSan Mateo: 67,433 people, 279 per km², 0.28% a yearSan Pablo: 26,462 people, 41 per km², 0.13% a yearSanta Maria: 25,919 people, 208 per km², 0.15% a yearSanto Tomas: 25,997 people, 319 per km², 1.40% a yearTumauini: 77,153 people, 164 per km², 2.10% a year

People · 2024 Census

  • Under 20,000
  • 20,000 to 31,000
  • 31,000 to 45,000
  • 45,000 to 76,000
  • 76,000 and over

The same steps colour every map of cities and municipalities in the Atlas, so a colour means the same range everywhere.

Density · people per km², 2024

  • Under 140
  • 140 to 250
  • 250 to 390
  • 390 to 750
  • 750 and over

The same steps colour every map of cities and municipalities in the Atlas, so a colour means the same range everywhere.

Growth a year · 2020–2024

  • Fell by more than 1% a year
  • Fell, by up to 1% a year
  • Grew, by under 1% a year
  • Grew by 1 to 2% a year
  • Grew by 2% a year or more

Each place's yearly change between the 2020 and 2024 censuses, on the same steps as every map in the Atlas.

Borders from UN OCHA (PSA and NAMRIA), a guide and not the legal boundary[3]Open in OpenStreetMap
Cities and municipalities of Isabela. Each column heading sorts the table.
Kind[1, 7]Share (2024)
AliciaMunicipality74,6994.31%0.27% a year138.16 km²
AngadananMunicipality45,9702.65%0.53% a year203.63 km²
AuroraMunicipality37,1912.15%0.37% a year73.04 km²
Benito SolivenMunicipality30,6821.77%0.74% a year197.52 km²
BurgosMunicipality26,7291.54%0.63% a year57.70 km²
CabaganMunicipality55,4453.2%0.68% a year414.79 km²
CabatuanMunicipality40,2232.32%0.14% a year79.31 km²
Cauayan CityComponent city143,5398.28%0.02% a year336.40 km²
Ilagan CityComponent city164,0209.46%0.87% a year742.90 km²
Santiago CityIndependent component city150,3138.67%0.28% a year165.69 km²
CordonMunicipality46,6882.69%0.11% a year234.71 km²
Delfin AlbanoMunicipality30,8601.78%0.74% a year189.00 km²
DinapigueMunicipality6,1160.35%1.19% a year1,031.93 km²
DivilacanMunicipality5,8710.34%0.18% a year875.87 km²
EchagueMunicipality91,3205.27%0.78% a year648.38 km²
GamuMunicipality30,8501.78%0.15% a year105.95 km²
JonesMunicipality46,1602.66%0.28% a year670.14 km²
LunaMunicipality21,0151.21%0.37% a year44.94 km²
MaconaconMunicipality4,2520.25%1.62% a year538.66 km²
MalligMunicipality32,5091.88%0.22% a year119.08 km²
NaguilianMunicipality34,5201.99%0.52% a year169.81 km²
PalananMunicipality18,0911.04%0.55% a year880.20 km²
QuezonMunicipality28,3761.64%1.17% a year210.26 km²
QuirinoMunicipality25,2051.45%0.17% a year126.20 km²
RamonMunicipality57,4123.31%0.37% a year185.63 km²
Reina MercedesMunicipality28,2221.63%0.28% a year57.14 km²
RoxasMunicipality66,5933.84%0.27% a year136.53 km²
San AgustinMunicipality22,2281.28%0.14% a year305.10 km²
San GuillermoMunicipality21,0431.21%0.15% a year457.35 km²
San IsidroMunicipality27,3261.58%0.25% a year63.24 km²
San ManuelMunicipality34,7402%0.46% a year124.42 km²
San MarianoMunicipality61,8763.57%0.69% a year1,460.96 km²
San MateoMunicipality67,4333.89%0.28% a year242.10 km²
San PabloMunicipality26,4621.53%0.13% a year637.90 km²
Santa MariaMunicipality25,9191.5%0.15% a year124.90 km²
Santo TomasMunicipality25,9971.5%1.40% a year81.48 km²
TumauiniMunicipality77,1534.45%2.10% a year471.68 km²

Land & Environment

Isabela covers 12,602.70 km² of land, 138 people for every km² in 2024. Its land rises to 1,850 m above the sea and it has 251.5 km of coast.
Land areaLand areaThe land inside the place's official boundary. A square kilometre is a square 1 km on each side, about the size of 140 football fields.More in the glossary
12,602.70 km²[7]As listed in the 2019 Masterlist of Land Areas (LMB, DENR)
Average density, 2024Population densityHow crowded a place is on average: its people divided by its land area. 1,000 people per square kilometre is 10 people per hectare, a square of 100 by 100 metres.More in the glossary
138 people per km²[7]
Coordinates
16.96680° N, 122.01278° E[3]The point inside its border farthest from every edge, so it always falls within the place.
Height above the sea[30]
Lowest
Sea level
Average
281 m
Highest
1,850 m

Heights from the Copernicus DEM, a 30 m model of the surface: it reads the tops of trees and roofs, not the bare ground, over the land inside the border, the sea left out. Produced using Copernicus WorldDEM-30 © DLR e.V. 2010-2014 and © Airbus Defence and Space GmbH 2014-2018 provided under COPERNICUS by the European Union and ESA; all rights reserved.

Water, coast and peaks

251.5 km of coastline[31]

Rivers[31]

  1. Cagayan River221.2 of 521.5 km
  2. Palanan River107.3 of 111.5 km
  3. Mallig River81.3 of 140.5 km
  4. Abuan River69.4 km
  5. Pinacanauan de Tumauini River65.8 km
  6. Siffu River59.8 km
  7. Sinalungan River52.7 km
  8. Pinacanauan River51.7 km

The longest inside it: 80 in all.

Lakes[31]

  1. Magat Dam Reservoirreservoir16.7 km²

Peaks[31]

  1. Mount Cresta1,672 m
  2. Mount Palanan1,195 m
  3. Mount Rocky355 m
  4. Mount Dikaclong275 m
  5. Bukid Mountainheight not mapped
  6. Ditolong Peakheight not mapped

The highest: 16 in all.

Named rivers, lakes and peaks as OpenStreetMap mapped them on 30 September 2026, and the coast within 150 m of the border. Map data © OpenStreetMap contributors, under the Open Database License.

Climate

Climate typeClimate typePAGASA sorts the country's climate into four types by when the rain falls. Type I has a dry season from November to April and a wet one for the rest of the year; Type II has no dry season, with the most rain from December to February; Type III has a short dry season; Type IV has rain spread through the year.More in the glossary

Type III[32]

No clear rainiest time of year, and a short dry season of one to three months, in December to February or in March to May.

Covers about 74 of every 100 parts of its land. Read by Scene off PAGASA's climate map, so approximate: the type that covers most of the place's land.

Life & Economy

Isabela's economy made ₱246.1 billion of goods and services in 2025, ₱140,362 for each person. About 12 of every 100 people lived below the poverty line in 2023.
Economy, 2025Gross domestic productThe value of all the goods and services made in a place in a year: the size of its economy. The PSA measures it for every region, province and highly urbanized city. Counted at 2018 prices, it leaves out the rise in prices, so one year can be set beside another.More in the glossary
₱246.1 billion[17]Its gross domestic product at current prices; ₱218.9 billion at 2018 prices.
Growth, 2024–2025
4.2%[18]How much more it made than the year before, at 2018 prices.
For each person, 2025
₱140,362[19]Its economy divided by its projected population, at current prices, as the PSA works it out.
Poverty, 2023Poverty incidenceHow many of every 100 people live in families whose income is below the poverty line: what a person needs in a year for food and other basic needs, as the PSA sets it for each province. It is an estimate, from a survey or, for a town, a statistical model, so the PSA gives a range it is likely to fall in.More in the glossary
11.7% of people[20]Below the poverty line, by the PSA's survey.
Income classIncome classThe Department of Finance sorts provinces, cities and municipalities into classes by their average yearly income over recent years: 1st class has the most. It measures the local government's income, not how well off its people are.More in the glossary
1st class[4]
About 12 of every 100 people in Isabela lived below the poverty line in 2023 (11.7%)[20]

The PSA's survey puts it between 8.9% and 14.5%, with 95% confidence. The poverty line was ₱34,500 a person for the year.

The PSA notes: Those with CVs higher than 10% in 2023 poverty incidence among population should be used with caution.

Public places

  • 212government offices
  • 64hospitals and health centres
  • 1,196schools
  • 145places of worship
  • 21markets
  • 29stations and terminals
  • 27parks
  • 2monuments and memorials

Counted from OpenStreetMap[3, 8]. Each town's page lists its own; this page lists the stations, parks, beaches and monuments.

Where a kind has more than 8, this page shows 6: first those with “Isabela” in their name, then one in each of its most populous cities and municipalities.

Stations and terminals29

23 more stations and terminals are listed on the pages of the cities and municipalities they stand in. See the 37 cities and municipalities of Isabela

Parks27

21 more parks are listed on the pages of the cities and municipalities they stand in. See the 37 cities and municipalities of Isabela

Monuments and memorials2

As OpenStreetMap maps them on September 30, 2026. Map data © OpenStreetMap contributors, under the Open Database License.

Government & Leaders

A governor leads Isabela. Its local laws, called ordinances, are passed by the Sangguniang Panlalawigan (the provincial board), led by the vice governor. The governor, the vice governor and the board's elected members serve three-year terms, and none may serve more than three in a row.[14, 15]

Capital
Ilagan City[4]

6 legislative districtsLegislative districtThe area that elects one member of the House of Representatives. A big province or city may have several.More in the glossary[16]

Each district elects one member of the House of Representatives. These are the districts as the laws drew them for the 2025 elections.

1st district

2nd district

3rd district

4th district

5th district

6th district

Leaders

The governor and vice governor elected at each election since 2001, as COMELEC's lists of the elected name them, and those in office now, as the DILG's directory lists them.

  1. 2025–2028In office as of February 2026

    Governor
    Rodolfo Taguinod Albano III[21]
    Vice governor
    Francis Faustino Arcega Dy[21]

  2. 2022–2025

    Governor
    Rodolfo Taguinod Albano III[22]
    Vice governor
    Faustino De Guzman Dy III[22]

  3. 2019–2022

    Governor
    Rodolfo Taguinod Albano III[23]
    Vice governor
    Faustino De Guzman Dy III[23]

  4. 2016–2019

    Governor
    Faustino De Guzman Dy III[24]
    Vice governor
    Antonio Taguinod Albano[24]

  5. 2013–2016

    Governor
    Faustino De Guzman Dy III[25]
    Vice governor
    Antonio Taguinod Albano[25]

  6. 2010–2013

    Governor
    Faustino De Guzman Dy III[26]
    Vice governor
    Rodolfo Taguinod Albano III[26]

  7. 2007–2010

    Governor
    Maria Gracia Cielo Magno Padaca[27]
    Vice governor
    Ramon Munsayac Reyes[27]

  8. 2004–2007

    Governor
    Maria Gracia Cielo Magno Padaca[28]
    Vice governor
    Ramon Munsayac Reyes[28]

  9. 2001–2004

    Governor
    Faustino S. Dy Jr.[29]
    Vice governor
    Santiago P. Respicio[29]
Governors and vice governors of Isabela, by term
TermGovernorVice governor
2025–2028In office as of February 2026Rodolfo Taguinod Albano III[21]Francis Faustino Arcega Dy[21]
2022–2025Rodolfo Taguinod Albano III[22]Faustino De Guzman Dy III[22]
2019–2022Rodolfo Taguinod Albano III[23]Faustino De Guzman Dy III[23]
2016–2019Faustino De Guzman Dy III[24]Antonio Taguinod Albano[24]
2013–2016Faustino De Guzman Dy III[25]Antonio Taguinod Albano[25]
2010–2013Faustino De Guzman Dy III[26]Rodolfo Taguinod Albano III[26]
2007–2010Maria Gracia Cielo Magno Padaca[27]Ramon Munsayac Reyes[27]
2004–2007Maria Gracia Cielo Magno Padaca[28]Ramon Munsayac Reyes[28]
2001–2004Faustino S. Dy Jr.[29]Santiago P. Respicio[29]

History & Identity

Created
Created by a royal decree of 1 May 1856 from towns of Cagayan and Nueva Vizcaya; its civil government was set up under Act No. 210, enacted 24 August 1901[9, 10, 11]

How it got its name

The province was named Isabela de Luzón in honour of Queen Isabel II of Spain, in whose reign it was created in 1856.[9, 10, 12]

Its story

Its towns first belonged to the vast Province of Cagayan, recognized as an alcaldía in 1583 with its capital at Nueva Segovia, today's Lal-lo. In 1839 the towns from Ilagan south to Aritao went to the new Province of Nueva Vizcaya.[9]

A royal decree of 1 May 1856, meant to help the missionaries in the Cagayan Valley, created the Province of Isabela from towns of Cagayan and Nueva Vizcaya, from Cabagan to Carig and Palanan, with the old town of Ilagan as its capital.[9, 10]

On 23 March 1901 American forces under General Funston captured General Emilio Aguinaldo at Palanan, on the province's coast.[10, 12]

On 24 August 1901 the Philippine Commission's Act No. 210 extended the Provincial Government Act to Isabela, and Captain William H. Johnson was appointed its first American governor.[9, 11]

Its new provincial capitol at Alibagu, in Ilagan, was inaugurated on 22 September 1992. Santiago became a city in 1994, and Cauayan and Ilagan component cities in 2001 and 2012.[9]

The province celebrates its foundation anniversary on 11 May.[13]

Timeline

  1. 24 May 1839

    The Province of Nueva Vizcaya is created from the southern towns of Cagayan.[9]

  2. 1 May 1856

    A royal decree creates the Province of Isabela, with Ilagan as its capital.[9, 10]

  3. 23 March 1901

    Aguinaldo is captured at Palanan.[10]

  4. 24 August 1901

    Act No. 210 extends the Provincial Government Act to Isabela.[11]

  5. 22 September 1992

    The new provincial capitol in Alibagu, Ilagan, is inaugurated.[9]

  6. 3 July 1994

    Santiago's cityhood is ratified in a plebiscite.[9]

Nearby

Isabela shares a border with 7 places.

How it compares

Isabela beside Cagayan Valley, and where it stands among the provinces of Cagayan Valley.

Isabela beside Cagayan Valley
FigureIsabelaCagayan ValleyRank among the provinces of Cagayan Valley
People, 2024CensusA count of every person in the country, all on one day. The 2024 census counted people as they were on 1 July 2024.More in the glossary1,733,048[1, 2]3,777,6081st of 5
Growth a year, 2020–2024Growth a yearHow fast the number of people changed each year between two censuses. 1% a year means about 1 more person for every 100 people, each year.More in the glossary0.50% a year[1, 2]slower0.59% a year3rd of 5
People per km², 2024Population densityHow crowded a place is on average: its people divided by its land area. 1,000 people per square kilometre is 10 people per hectare, a square of 100 by 100 metres.More in the glossary138[7]more crowded1221st of 5
Land areaLand areaThe land inside the place's official boundary. A square kilometre is a square 1 km on each side, about the size of 140 football fields.More in the glossary12,602.70 km²[7]30,986.61 km²1st of 5
People in each household, 2024HouseholdA person living alone, or people who sleep in the same home and share their meals. A family may be one household or several.More in the glossary3.8[1, 2]about the same3.8not ranked
In urban barangays, 2024Urban barangayThe PSA counts a barangay as urban when it has 5,000 people or more, or a big employer, or several businesses and public services close by. Every barangay in Metro Manila is urban.More in the glossary20.9%[6]higher19.2%not ranked

Sources

Page updated October 8, 2026. Sources checked by Scene October 8, 2026.
  1. 1.Philippine Statistics Authority. Population and Annual Population Growth Rate of the Philippines and its Regions, Provinces, and Highly Urbanized Cities Based on the 2010, 2015, 2020 and 2024 Population Census (OpenSTAT table 0211A6DAPG0). Published August 7, 2026. Read by Scene October 2, 2026. CC BY (PSA Terms of Use). Open the source
  2. 2.Philippine Statistics Authority. Total Population, Household Population, and Number of Households by Province, City, Municipality, and Barangay as of 01 July 2024: Cagayan Valley (OpenSTAT table 0021A6DTPH1). Published August 4, 2026. Read by Scene October 2, 2026. CC BY (PSA Terms of Use). Open the source
  3. 3.UN OCHA, from the PSA and NAMRIA. Philippines: Subnational Administrative Boundaries (COD-AB), barangay layer. Published February 13, 2025. Read by Scene September 25, 2026. CC BY-IGO 3.0. Open the source
  4. 4.Philippine Statistics Authority. Philippine Standard Geographic Code (PSGC), 2nd Quarter 2026: Publication Datafile. Published June 30, 2026. Read by Scene September 24, 2026. CC BY (PSA Terms of Use). Open the source
  5. 5.Philippine Statistics Authority. Household Population by Age-Group Region, Province, and Highly Urbanized City: Philippines, 2024 Census of Population (OpenSTAT table 0201A6DPAG0). Published August 7, 2026. Read by Scene October 2, 2026. CC BY (PSA Terms of Use). Open the source
  6. 6.Philippine Statistics Authority. Total Population and Urban Population by Urban Classification and Region, Province, Highly Urbanized City, City/Municipality and Barangay: Philippines, 2024 (OpenSTAT table 0231A6DPUP0). Published August 7, 2026. Read by Scene October 2, 2026. CC BY (PSA Terms of Use). Open the source
  7. 7.Philippine Statistics Authority, from the Land Management Bureau (DENR). Population, Land Area, Population Density, and Percent Change in Population Density by Region, Province/Highly Urbanized City, and City/Municipality: 2015, 2020, and 2024 (OpenSTAT table 0221A6DLPD0). Published August 7, 2026. Read by Scene October 2, 2026. CC BY (PSA Terms of Use). Open the source
  8. 8.OpenStreetMap contributors. Named public places in OpenStreetMap: schools, hospitals and health centres, places of worship, government offices, markets, stations, parks, beaches and monuments, from Geofabrik's extract of the Philippines. Published September 30, 2026. Read by Scene October 2, 2026. ODbL 1.0. Open the source
  9. 9.Provincial Government of Isabela, Isabela Tourism Office. Historical Development of the Province of Isabela (as archived by the Internet Archive on 5 March 2026). Read by Scene October 2, 2026. Philippine government work, no copyright (Republic Act No. 8293, Section 176.1). Open the source
  10. 10.Provincial Government of Isabela. History & Culture (older site, as archived by the Internet Archive on 31 December 2024). Read by Scene October 2, 2026. Philippine government work, no copyright (Republic Act No. 8293, Section 176.1). Open the source
  11. 11.United States Philippine Commission. Act No. 210: An Act Extending the Provisions of the Provincial Government Act and Its Amendments to the Province of Isabela. Published August 24, 1901. Read by Scene October 2, 2026. Philippine government work, no copyright (Republic Act No. 8293, Section 176.1). Open the source
  12. 12.Provincial Government of Isabela. History: Isabela in a Nutshell. Published May 7, 2025. Read by Scene October 2, 2026. Philippine government work, no copyright (Republic Act No. 8293, Section 176.1). Open the source
  13. 13.Office of the President of the Philippines. Proclamation No. 790, s. 1996: Declaring Saturday, May 11, 1996, as a Special Day in the Province of Isabela. Published April 25, 1996. Read by Scene October 2, 2026. Philippine government work, no copyright (Republic Act No. 8293, Section 176.1). Open the source
  14. 14.Congress of the Philippines. Republic Act No. 7160: the Local Government Code of 1991. Published October 10, 1991. Read by Scene October 2, 2026. Philippine government work, no copyright (Republic Act No. 8293, Section 176.1). Open the source
  15. 15.1986 Constitutional Commission. The 1987 Constitution of the Republic of the Philippines. Published February 2, 1987. Read by Scene October 2, 2026. Philippine government work, no copyright (Republic Act No. 8293, Section 176.1). Open the source
  16. 16.Congress of the Philippines. Republic Act No. 11080: An Act reapportioning the Province of Isabela into six (6) legislative districts. Published September 27, 2018. Read by Scene October 2, 2026. Philippine government work, no copyright (Republic Act No. 8293, Section 176.1). Open the source
  17. 17.Philippine Statistics Authority. Gross Domestic Product by Province and HUC (OpenSTAT table 0012A5FPPA0). Published August 28, 2026. Read by Scene October 2, 2026. CC BY (PSA Terms of Use). Open the source
  18. 18.Philippine Statistics Authority. Gross Domestic Product by Province and HUC, Growth Rates (OpenSTAT table 0032A5FPPA2). Published August 28, 2026. Read by Scene October 2, 2026. CC BY (PSA Terms of Use). Open the source
  19. 19.Philippine Statistics Authority. Per Capita Gross Domestic Product by Province and HUC (OpenSTAT table 0092A5FPPA8). Published August 28, 2026. Read by Scene October 2, 2026. CC BY (PSA Terms of Use). Open the source
  20. 20.Philippine Statistics Authority (PSA). Table 2a. Annual Per Capita Poverty Threshold and Poverty Incidence Among Population with Measures of Precision, by Region, Province and Highly Urbanized Cities: 2018, 2021, and 2023 (OpenSTAT table 0041F3DF02A). Published August 15, 2024. Read by Scene October 2, 2026. CC BY (PSA Terms of Use). Open the source
  21. 21.Department of the Interior and Local Government (DILG). Directory of LGU Elective Officials for Term 2025-2028 as of February 2026 (its sheet: Consolidated List of Officials for Election Terms (2025-2028)), released through the FOI portal. Published February 2026. Read by Scene October 2, 2026. A work of the Government of the Philippines: RA 8293, Section 176 (no copyright subsists in it; exploiting it for profit needs the agency's prior approval). Open the source
  22. 22.Commission on Elections (COMELEC), Records and Statistics Division, ERSD. List of Elected Provincial Candidates, May 9, 2022 National and Local Elections. Published December 23, 2025. Read by Scene October 2, 2026. Public domain: comelec.gov.ph says "All content is in the public domain unless otherwise stated." Each list carries COMELEC's data privacy notice (RA 10173).. Open the source
  23. 23.Commission on Elections (COMELEC), Records and Statistics Division, ERSD. List of Elected Provincial Candidates, May 13, 2019 National and Local Elections. Published December 23, 2025. Read by Scene October 2, 2026. Public domain: comelec.gov.ph says "All content is in the public domain unless otherwise stated." Each list carries COMELEC's data privacy notice (RA 10173).. Open the source
  24. 24.Commission on Elections (COMELEC), Records and Statistics Division, ERSD. List of Elected Provincial Candidates, May 9, 2016 National and Local Elections. Published January 12, 2026. Read by Scene October 2, 2026. Public domain: comelec.gov.ph says "All content is in the public domain unless otherwise stated." Each list carries COMELEC's data privacy notice (RA 10173).. Open the source
  25. 25.Commission on Elections (COMELEC), Records and Statistics Division, ERSD. List of Elected Provincial Candidates, May 13, 2013 National and Local Elections. Published January 12, 2026. Read by Scene October 2, 2026. Public domain: comelec.gov.ph says "All content is in the public domain unless otherwise stated." Each list carries COMELEC's data privacy notice (RA 10173).. Open the source
  26. 26.Commission on Elections (COMELEC), Records and Statistics Division, ERSD. List of Elected Provincial Candidates, May 10, 2010 National and Local Elections. Published January 10, 2026. Read by Scene October 2, 2026. Public domain: comelec.gov.ph says "All content is in the public domain unless otherwise stated." Each list carries COMELEC's data privacy notice (RA 10173).. Open the source
  27. 27.Commission on Elections (COMELEC), Records and Statistics Division, ERSD. List of Elected Provincial Candidates, May 14, 2007 National and Local Elections. Published January 14, 2026. Read by Scene October 2, 2026. Public domain: comelec.gov.ph says "All content is in the public domain unless otherwise stated." Each list carries COMELEC's data privacy notice (RA 10173).. Open the source
  28. 28.Commission on Elections (COMELEC), Records and Statistics Division, ERSD. List of Elected Provincial Candidates, May 10, 2004 National and Local Elections. Published January 8, 2026. Read by Scene October 2, 2026. Public domain: comelec.gov.ph says "All content is in the public domain unless otherwise stated." Each list carries COMELEC's data privacy notice (RA 10173).. Open the source
  29. 29.Commission on Elections (COMELEC), Records and Statistics Division, ERSD. List of Elected Provincial Candidates, May 14, 2001 National and Local Elections (its pages are headed "LIST OF ELECTED MEMBER, HOUSE OF REPRESENTATIVES"). Published January 8, 2026. Read by Scene October 2, 2026. Public domain: comelec.gov.ph says "All content is in the public domain unless otherwise stated." Each list carries COMELEC's data privacy notice (RA 10173).. Open the source
  30. 30.European Union and the European Space Agency (Copernicus), from DLR and Airbus Defence and Space (WorldDEM). Copernicus DEM GLO-30: global digital surface model at 30 m, one-degree tiles (2021 release). Published 2021. Read by Scene October 2, 2026. Copernicus DEM GLO-30 licence: free, any use including commercial, with the Copernicus notice. Open the source
  31. 31.OpenStreetMap contributors, extract by Geofabrik. Named rivers, lakes, reservoirs, peaks and the coastline of the Philippines in OpenStreetMap (Geofabrik extract, cut by osmium). Published September 30, 2026. Read by Scene October 2, 2026. ODbL 1.0. Open the source
  32. 32.Philippine Atmospheric, Geophysical and Astronomical Services Administration (PAGASA), Climatology and Agrometeorology Division. Climate Map of the Philippines (1951-2010), Modified Coronas Climate Classification. Published August 2014. Read by Scene October 2, 2026. A work of the Government of the Philippines: no copyright (RA 8293 s.176.1); PAGASA's approval is needed to use it for profit. Open the source
  33. 33.Philippine Statistics Authority. 2015 Census of Population, Statistical Tables, Table 1: Population Enumerated in Various Censuses by City/Municipality, 1960-2015 (one workbook for each province, highly urbanized city and region). Published 2017. Read by Scene October 2, 2026. CC BY (PSA Terms of Use). Open the source
  34. 34.Philippine Statistics Authority. 2020 Census of Population and Housing: Table A (Population and Annual Growth Rate for the Philippines and its Regions, Provinces and Highly Urbanized Cities) and Table B (Population and Annual Growth Rates by Province, City and Municipality, by Region). Published July 2021. Read by Scene October 2, 2026. CC BY (PSA Terms of Use). Open the source

Scene adds what the sources do not print themselves: growth rates, shares, barangay areas and densities, coordinates, neighbours and distances, each computed from the figures and borders above. How each is made.

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Cite this page

Scene.ph. “Isabela.” Scene Atlas. Updated October 8, 2026. https://scene.ph/atlas/isabela