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Municipality

San Esteban

San Esteban is a municipality in Ilocos Sur, Ilocos Region, Philippines. Its population was 8,621 in the 2024 census, and it has 10 barangays.

  • Population: 2024 Census
  • Places: PSGC 2Q 2026
  • Checked by Scene: October 8, 2026
  • Page updated: October 9, 2026
Colour byColours the map of San Esteban by the figure chosen; the key beside it says what each colour means.
BurgosSanta MariaSantiagoAnsad: 682 people, 271 per km², 1.42% a yearApatot: 1,734 people, 774 per km², 2.10% a yearBateria: 493 people, 436 per km², −0.62% a yearCabaroan: 863 people, 194 per km², −0.52% a yearCappa-cappa: 829 people, 351 per km², 0.47% a yearPoblacion: 735 people, 1,376 per km², −2.04% a yearSan Nicolas: 1,100 people, 370 per km², 0.60% a yearSan Pablo: 1,006 people, 1,663 per km², 0.68% a yearSan Rafael: 808 people, 1,966 per km², 2.77% a yearVilla Quirino: 371 people, 1,185 per km², −0.19% a year

People · 2024 Census

  • Under 690
  • 690 to 1,100
  • 1,100 to 1,800
  • 1,800 to 3,100
  • 3,100 and over

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

Density · people per km², 2024

  • Under 160
  • 160 to 340
  • 340 to 700
  • 700 to 2,600
  • 2,600 and over

The same steps colour every map of barangays 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

  • PeopleSources

    8,621

    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 6.8% from 2010 to 2024

  • Rank by peopleSources

    25th

    of the 34 cities and municipalities of Ilocos Sur 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 1 of every 100 people in Ilocos Sur lived in San Esteban in 2024 (1.21%)

  • Inside itSources

    10

    barangays

  • LandSources

    19.92 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: San Esteban's land would fill a square about 4.5 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: 433 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 4 people 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

    2,317

    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

    3.7 people in each, on average, in 2024

  • Town or countrySources

    0%

    Fewer than 1 of every 1,000 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
0102918000[4]Formerly 012918000
ZIP code
2706[13, 14]

People

San Esteban had 8,621 people in the 2024 census, up 6.8% 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.

San Esteban had the 25th most people of the 34 cities and municipalities of Ilocos Sur in 2024[1]
  1. 22Suyo11,051
  2. 23Galimuyod10,263
  3. 24Quirino9,460
  4. 25San Esteban8,621
  5. 26San Ildefonso8,213
  6. 27Banayoyo7,953
  7. 28Alilem7,736
All 34 cities and municipalities of Ilocos Sur
Its 10 barangays by people, 2024 Census[2]
  1. Apatot1,73420 in 100
  2. San Nicolas1,10013 in 100
  3. San Pablo1,00612 in 100
  4. Cabaroan86310 in 100
  5. Cappa-cappa82910 in 100
  6. San Rafael8089 in 100
  7. Poblacion7359 in 100
  8. Ansad6828 in 100
  9. Bateria4936 in 100
  10. Villa Quirino3714 in 100
Age structure · 2020 Census[32]People living in households, by age and sex
  • About 24 of every 100 are children under 15 (24.4%)
  • About 66 of every 100 are of working age, 15 to 64 (65.5%)
  • About 10 of every 100 are 65 or older (10%)
MenWomen

The figures by age

People by age group, men and women
AgePeopleMenWomen
0 - 4562282280
5 - 9692368324
10 - 14792411381
15 - 19764393371
20 - 24757400357
25 - 29686343343
30 - 34530262268
35 - 39571282289
40 - 44505271234
45 - 49489254235
50 - 54465256209
55 - 59421207214
60 - 64294147147
65 - 69257128129
70 - 7421397116
75 - 7917361112
80 years and over19868130

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
8,621[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
2,317[1, 2]
People in each household, 2024
3.7 on average[1, 2]
Share of Ilocos Sur, 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
1.21%[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
0% (0 people)[5]
Men and women, 2020
4,230 men, 4,139 women[32]People living in households
Population at each census, with its source
CensusPopulationGrowth since the census beforeHouseholdsPeople per household
2024as of July 1, 20248,621[1, 2]0.68% a year2,3173.7
2020as of May 1, 20208,381[1]0.08% a year——
2015as of August 1, 20158,349[1]0.64% a year——
2010as of May 1, 20108,072[1]———
2007as of August 1, 2007; as it was then7,779[30]1.12% a year——
2000as of May 1, 2000; on today’s borders7,174[30, 31]2.11% a year——
1995as of September 1, 1995; as it was then6,508[30]0.53% a year——
1990as of May 1, 1990; as it was then6,327[30]1.40% a year——
1980as of May 1, 1980; as it was then5,504[30]0.85% a year——
1975as of May 1, 1975; as it was then5,275[30]1.71% a year——
1970as of May 6, 1970; as it was then4,848[30]1.25% a year——
1960as of February 15, 1960; as it was then4,269[30]———

Barangays

San Esteban is made up of 10 barangays.
Barangays of San Esteban. Each column heading sorts the table.
[2, 3, 5, 6, 7]Share (2024)Urban or rural
Ansad6827.91%1.42% a yearabout 2.52 km²Rural
Apatot1,73420.11%2.10% a yearabout 2.24 km²Rural
Bateria4935.72%−0.62% a yearabout 1.13 km²Rural
Cabaroan86310.01%−0.52% a yearabout 4.44 km²Rural
Cappa-cappa8299.62%0.47% a yearabout 2.36 km²Rural
Poblacion7358.53%−2.04% a yearabout 0.534 km²Rural
San Nicolas1,10012.76%0.60% a yearabout 2.97 km²Rural
San Pablo1,00611.67%0.68% a yearabout 0.605 km²Rural
San Rafael8089.37%2.77% a yearabout 0.411 km²Rural
Villa Quirino3714.3%−0.19% a yearabout 0.313 km²Rural

Areas are approximate: each is measured inside the barangay's border on UN OCHA's map, which is a guide, not the legal boundary.

Land & Environment

San Esteban covers 19.92 km² of land, 433 people for every km² in 2024. Its land rises to 206 m above the sea and it has 7.6 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
19.92 km²[6]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
433 people per km²[6]
Coordinates
17.32654° N, 120.45183° E[3]The point inside its border farthest from every edge, so it always falls within the place.
Height above the sea[27]
Lowest
1 m
Average
47 m
Highest
206 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

7.6 km of coastline[28]

Peaks[28]

  1. Bacao Hillheight not mapped

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 I[29]

Two seasons: dry from November to April, wet for the rest of the year, with the heaviest rain from June to September.

Read by Scene off PAGASA's climate map, so approximate: the type that covers most of the place's land.

Life & Economy

About 14 of every 100 people lived below the poverty line in 2021.
Poverty, 2021Poverty 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
14.1% of people[17]Below the poverty line, by the PSA's estimate for every town.
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 14 of every 100 people in San Esteban lived below the poverty line in 2021 (14.1%)[17]

The PSA's model for every town puts it between 10.6% and 17.6%, with 90% confidence.

The PSA rates this estimate's reliability as acceptable rather than high: read it as a guide.

Public places

  • 2government offices
  • 5schools

Counted from OpenStreetMap[3, 8]. Schools, places of worship, barangay halls and places known only by a common name, such as a chapel, are listed on each barangay's page.

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

Government & Leaders

A mayor leads San Esteban. Its local laws, called ordinances, are passed by the Sangguniang Bayan (the municipal council), led by the vice mayor. The mayor, the vice mayor and the council's elected members serve three-year terms, and none may serve more than three in a row.[11, 12]

Legislative districtLegislative districtThe area that elects one member of the House of Representatives. A big province or city may have several.More in the glossary
2nd district of Ilocos Sur[15, 16]

Leaders

The mayor and vice mayor 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

    Mayor
    Maria Divina Gracia Elaydo Etalin[18]
    Vice mayor
    Ray Morales Elaydo II[18]

  2. 2022–2025

    Mayor
    Ray Morales Elaydo II[19]
    Vice mayor
    Maria Divina Gracia Morales Elaydo[19]

  3. 2019–2022

    Mayor
    Ray Morales Elaydo II[20]
    Vice mayor
    Ray Aquino Elaydo[20]

  4. 2016–2019

    Mayor
    Ray Aquino Elaydo[21]
    Vice mayor
    Ray Morales Elaydo II[21]

  5. 2013–2016

    Mayor
    Chester Aquino Elaydo[22]
    Vice mayor
    Mildred Morales Elaydo[22]

  6. 2010–2013

    Mayor
    Chester Aquino Elaydo[23]
    Vice mayor
    Mildred Morales Elaydo[23]

  7. 2007–2010

    Mayor
    Chester Aquino Elaydo[24]
    Vice mayor
    Mildred Morales Elaydo[24]

  8. 2004–2007

    Mayor
    Armando Abad[25]
    Vice mayor
    Norman Mendoza[25]

  9. 2001–2004

    Mayor
    Armando V. Abad[26]
    Vice mayor
    Norma V. Mendoza[26]
Mayors and vice mayors of San Esteban, by term
TermMayorVice mayor
2025–2028In office as of February 2026Maria Divina Gracia Elaydo Etalin[18]Ray Morales Elaydo II[18]
2022–2025Ray Morales Elaydo II[19]Maria Divina Gracia Morales Elaydo[19]
2019–2022Ray Morales Elaydo II[20]Ray Aquino Elaydo[20]
2016–2019Ray Aquino Elaydo[21]Ray Morales Elaydo II[21]
2013–2016Chester Aquino Elaydo[22]Mildred Morales Elaydo[22]
2010–2013Chester Aquino Elaydo[23]Mildred Morales Elaydo[23]
2007–2010Chester Aquino Elaydo[24]Mildred Morales Elaydo[24]
2004–2007Armando Abad[25]Norman Mendoza[25]
2001–2004Armando V. Abad[26]Norma V. Mendoza[26]

History & Identity

Its story

Act No. 934 of 1903 merged San Esteban, with Nueva Coveta, into the municipality of Santiago.[10]

Timeline

  1. 8 October 1903

    Act No. 934 joined San Esteban and Nueva Coveta to Santiago.[10]

Nearby

San Esteban shares a border with Burgos, Santa Maria and Santiago.

How it compares

San Esteban beside Ilocos Sur, and where it stands among the cities and municipalities of Ilocos Sur.

San Esteban beside Ilocos Sur
FigureSan EstebanIlocos SurRank among the cities and municipalities of Ilocos Sur
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 glossary8,621[1, 2]709,99125th of 34
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 glossary0.68% a year[1, 2]faster0.13% a year5th of 34
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 glossary433[6]more crowded26813th of 34
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 glossary19.92 km²[6]2,651.49 km²30th of 34
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 glossary3.7[1, 2]lower3.8not 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 glossary0%[5]lower10.6%not ranked

How far, in a straight line[3]

Vigan City, the capital of Ilocos Sur
27.5 km north
Manila
310.0 km south

In a straight line between the points inside each place farthest from its edges, not by road.

The nearest towns and cities[3]

  1. BurgosIlocos Sur6.4 km east
  2. SantiagoIlocos Sur7.2 km south
  3. Santa MariaIlocos Sur7.7 km northeast
  4. BanayoyoIlocos Sur10.2 km southeast
  5. LidliddaIlocos Sur11.4 km southeast
  6. Candon CityIlocos Sur13.2 km south

Sources

Page updated October 9, 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: Ilocos Region (OpenSTAT table 0011A6DTPH0). 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. 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
  6. 6.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
  7. 7.Philippine Statistics Authority. Philippine Standard Geographic Code (PSGC), 4th Quarter 2022: Publication Datafile, with the 2015 and 2020 census counts (the PSA's file, as the Internet Archive keeps it). Published December 31, 2022. 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.Municipality of San Esteban, Ilocos Sur. Official website. Read by Scene October 3, 2026. Philippine government work, no copyright (Republic Act No. 8293, Section 176.1). Open the source
  10. 10.Philippine Commission (via The Lawphil Project). Act No. 934: An Act reducing the twenty-four municipalities of the Province of Ilocos Sur to fourteen. Published October 8, 1903. Read by Scene October 2, 2026. Philippine government work, no copyright (Republic Act No. 8293, Section 176.1). Open the source
  11. 11.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
  12. 12.1986 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
  13. 13.Philippine Postal Corporation (PHLPost). ZIP Code Locator, as the Internet Archive captured it on 2022-05-21 (its SHA-1 matches the Archive's index). Published May 21, 2022. Read by Scene October 2, 2026. Philippine government work, no copyright (Republic Act No. 8293, Section 176.1; a government-owned corporation's work is the Government's, Section 171.9). Open the source
  14. 14.Philippine Postal Corporation (PHLPost). Philippine ZIP Codes (the directory "ZipCode 2019.pdf", made 2019-12-02), as the Internet Archive keeps it (its SHA-1 matches the Archive's index). Published December 2, 2019. Read by Scene October 2, 2026. Philippine government work, no copyright (Republic Act No. 8293, Section 176.1; a government-owned corporation's work is the Government's, Section 171.9). Open the source
  15. 15.1986 Constitutional Commission (text from the Chan Robles Virtual Law Library). Ordinance appended to the 1987 Constitution, apportioning the seats of the House of Representatives. 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.Commission on Elections (COMELEC). 2025 National and Local Elections: results, certificates of canvass of every province, city and municipality. Published May 2025. 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. Municipal and City Level Small Area Poverty Estimates; 2018 and 2021 (the PSA's workbook "2018 - 2021 SAE_with PSGC_noHUC.xlsx", sheet "2018-2021_NoHUC", as the Internet Archive keeps it). Published April 2, 2024. Read by Scene October 2, 2026. CC BY (PSA Terms of Use). Open the source
  18. 18.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
  19. 19.Commission on Elections (COMELEC), Records and Statistics Division, ERSD. List of Elected City/Municipal 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
  20. 20.Commission on Elections (COMELEC), Records and Statistics Division, ERSD. List of Elected City/Municipal 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
  21. 21.Commission on Elections (COMELEC), Records and Statistics Division, ERSD. List of Elected City/Municipal Candidates, May 9, 2016 National and Local Elections (its pages are headed "LIST OF ELECED CITY/MUNICIPAL CANDIDATES"). 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
  22. 22.Commission on Elections (COMELEC), Records and Statistics Division, ERSD. List of Elected City/Municipal 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
  23. 23.Commission on Elections (COMELEC), Records and Statistics Division, ERSD. List of Elected City/Municipal Candidates, May 10, 2010 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
  24. 24.Commission on Elections (COMELEC), Records and Statistics Division, ERSD. List of Elected City/Municipal 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
  25. 25.Commission on Elections (COMELEC), Records and Statistics Division, ERSD. List of Elected City/Municipal Candidates, May 10, 2004 National and Local Elections (its pages are headed "LIST OF CITY/MUNICIPAL CANDIDATES"). 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
  26. 26.Commission on Elections (COMELEC), Records and Statistics Division, ERSD. List of Elected City/Municipal Candidates, May 14, 2001 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
  27. 27.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
  28. 28.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
  29. 29.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
  30. 30.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
  31. 31.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
  32. 32.Philippine Statistics Authority. 2020 Census of Population and Housing: Household Population by Age Group and Sex, for the Philippines and its regions, provinces, cities and municipalities (revised file, psa.gov.ph/system/files/phcd/2022-12/). Published December 2022. Read by Scene October 8, 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. “San Esteban, Ilocos Sur.” Scene Atlas. Updated October 9, 2026. https://scene.ph/atlas/ilocos-sur/san-esteban