Skip to content

Municipality

Naguilian

Naguilian is a municipality in La Union, Ilocos Region, Philippines. Its population was 53,443 in the 2024 census, and it has 37 barangays.

  • Population: 2024 Census
  • Places: PSGC 2Q 2026
  • Checked by Scene: October 8, 2026
  • Page updated: October 9, 2026
Colour byColours the map of Naguilian by the figure chosen; the key beside it says what each colour means.
AringayBagulinBauangBurgosCabaSan Fernando CityAguioas: 1,019 people, 592 per km², −0.78% a yearAl-alinao Norte: 1,554 people, 529 per km², 3.38% a yearAl-alinao Sur: 905 people, 176 per km², −2.30% a yearAmbaracao Norte: 1,762 people, 368 per km², −0.97% a yearAmbaracao Sur: 865 people, 252 per km², 1.68% a yearAngin: 839 people, 861 per km², −0.70% a yearBalecbec: 939 people, 154 per km², −0.23% a yearBancagan: 1,374 people, 387 per km², 4.36% a yearBaraoas Norte: 960 people, 449 per km², −1.26% a yearBaraoas Sur: 3,977 people, 2,517 per km², 2.82% a yearBariquir: 2,142 people, 1,203 per km², −1.72% a yearBato: 1,609 people, 408 per km², −0.96% a yearBimmotobot: 1,105 people, 145 per km², −0.83% a yearCabaritan Norte: 670 people, 1,311 per km², 3.43% a yearCabaritan Sur: 2,112 people, 1,354 per km², 0.84% a yearCasilagan: 2,157 people, 260 per km², −0.39% a yearDal-lipaoen: 2,105 people, 1,349 per km², 3.92% a yearDaramuangan: 1,112 people, 904 per km², −1.51% a yearGuesset: 1,248 people, 734 per km², 0.47% a yearGusing Norte: 1,679 people, 293 per km², 1.75% a yearGusing Sur: 1,547 people, 410 per km², 1.96% a yearImelda: 1,336 people, 5,590 per km², 3.73% a yearLioac Norte: 1,631 people, 1,812 per km², 0.89% a yearLioac Sur: 1,309 people, 856 per km², 0.33% a yearMagungunay: 838 people, 194 per km², −0.87% a yearMamat-ing Norte: 789 people, 220 per km², −0.03% a yearMamat-ing Sur: 1,306 people, 782 per km², −0.22% a yearNagsidorisan: 940 people, 639 per km², −2.40% a yearNatividad: 2,930 people, 3,238 per km², −1.61% a yearOrtiz: 2,632 people, 3,202 per km², −1.34% a yearRibsuan: 1,140 people, 551 per km², 2.30% a yearSan Antonio: 853 people, 374 per km², −2.10% a yearSan Isidro: 896 people, 221 per km², −0.08% a yearSili: 1,293 people, 1,307 per km², 0.28% a yearSuguidan Norte: 992 people, 709 per km², 1.77% a yearSuguidan Sur: 940 people, 258 per km², 1.96% a yearTuddingan: 1,938 people, 623 per km², 4.39% 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

    53,443

    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 10.4% from 2010 to 2024

  • Rank by peopleSources

    5th

    of the 20 cities and municipalities of La Union 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 6 of every 100 people in La Union lived in Naguilian in 2024 (6.48%)

  • Inside itSources

    37

    barangays

  • LandSources

    103.35 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: Naguilian's land would fill a square about 10.2 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: 517 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 5 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

    13,729

    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

    3.9 people in each, on average, in 2024

  • Town or countrySources

    10.4%

    About 10 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
0103311000[4]Formerly 013311000
ZIP code
2511[15, 16]

People

Naguilian had 53,443 people in the 2024 census, up 10.4% 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.

Naguilian had the 5th most people of the 20 cities and municipalities of La Union in 2024[1]
  1. 2Bauang77,670
  2. 3Agoo65,256
  3. 4Rosario58,797
  4. 5Naguilian53,443
  5. 6Aringay50,786
  6. 7Bacnotan45,203
  7. 8Santo Tomas42,777
All 20 cities and municipalities of La Union
In 2024, the 10 barangays with the most people held about 44 of every 100 of its people[2]
  1. Baraoas Sur3,9777 in 100
  2. Natividad2,9305 in 100
  3. Ortiz2,6325 in 100
  4. Casilagan2,1574 in 100
  5. Bariquir2,1424 in 100
  6. Cabaritan Sur2,1124 in 100
  7. Dal-lipaoen2,1054 in 100
  8. Tuddingan1,9384 in 100
  9. Ambaracao Norte1,7623 in 100
  10. Gusing Norte1,6793 in 100
See all 37 barangays of Naguilian
Age structure · 2020 Census[35]People living in households, by age and sex
  • About 26 of every 100 are children under 15 (25.7%)
  • About 66 of every 100 are of working age, 15 to 64 (66.4%)
  • About 8 of every 100 are 65 or older (7.9%)
MenWomen

The figures by age

People by age group, men and women
AgePeopleMenWomen
0 - 44,1632,1352,028
5 - 94,4982,3212,177
10 - 144,7152,4862,229
15 - 194,8082,4762,332
20 - 244,5132,3302,183
25 - 294,0492,0801,969
30 - 343,7351,9331,802
35 - 393,5481,7851,763
40 - 443,3141,7001,614
45 - 493,0001,5331,467
50 - 542,9551,5411,414
55 - 592,6631,3251,338
60 - 642,0561,0001,056
65 - 691,583772811
70 - 741,027452575
75 - 79610218392
80 years and over906282624

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
53,443[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
13,729[1, 2]
People in each household, 2024
3.9 on average[1, 2]
Share of La Union, 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
6.48%[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
10.4% (5,562 people)[5]
Men and women, 2020
26,369 men, 25,774 women[35]People living in households
Population at each census, with its source
CensusPopulationGrowth since the census beforeHouseholdsPeople per household
2024as of July 1, 202453,443[1, 2]0.57% a year13,7293.9
2020as of May 1, 202052,189[1]−0.80% a year——
2015as of August 1, 201554,221[1]2.18% a year——
2010as of May 1, 201048,407[1]———
2007as of August 1, 2007; as it was then45,232[33]0.54% a year——
2000as of May 1, 2000; on today’s borders43,501[33, 34]1.82% a year——
1995as of September 1, 1995; as it was then39,989[33]1.81% a year——
1990as of May 1, 1990; as it was then36,328[33]2.17% a year——
1980as of May 1, 1980; as it was then29,304[33]1.56% a year——
1975as of May 1, 1975; as it was then27,114[33]1.50% a year——
1970as of May 6, 1970; as it was then25,177[33]2.52% a year——
1960as of February 15, 1960; as it was then19,528[33]———

Barangays

Naguilian is made up of 37 barangays.
Barangays of Naguilian. Each column heading sorts the table.
[2, 3, 5, 6, 7]Share (2024)Urban or rural
Aguioas1,0191.91%−0.78% a yearabout 1.72 km²Rural
Al-alinao Norte1,5542.91%3.38% a yearabout 2.94 km²Rural
Al-alinao Sur9051.69%−2.30% a yearabout 5.13 km²Rural
Ambaracao Norte1,7623.3%−0.97% a yearabout 4.79 km²Rural
Ambaracao Sur8651.62%1.68% a yearabout 3.43 km²Rural
Angin8391.57%−0.70% a yearabout 0.974 km²Rural
Balecbec9391.76%−0.23% a yearabout 6.10 km²Rural
Bancagan1,3742.57%4.36% a yearabout 3.55 km²Rural
Baraoas Norte9601.8%−1.26% a yearabout 2.14 km²Rural
Baraoas Sur3,9777.44%2.82% a yearabout 1.58 km²Rural
Bariquir2,1424.01%−1.72% a yearabout 1.78 km²Rural
Bato1,6093.01%−0.96% a yearabout 3.94 km²Rural
Bimmotobot1,1052.07%−0.83% a yearabout 7.60 km²Rural
Cabaritan Norte6701.25%3.43% a yearabout 0.511 km²Rural
Cabaritan Sur2,1123.95%0.84% a yearabout 1.56 km²Rural
Casilagan2,1574.04%−0.39% a yearabout 8.29 km²Rural
Dal-lipaoen2,1053.94%3.92% a yearabout 1.56 km²Rural
Daramuangan1,1122.08%−1.51% a yearabout 1.23 km²Rural
Guesset1,2482.34%0.47% a yearabout 1.70 km²Rural
Gusing Norte1,6793.14%1.75% a yearabout 5.74 km²Rural
Gusing Sur1,5472.89%1.96% a yearabout 3.77 km²Rural
Imelda1,3362.5%3.73% a yearabout 0.239 km²Rural
Lioac Norte1,6313.05%0.89% a yearabout 0.90 km²Rural
Lioac Sur1,3092.45%0.33% a yearabout 1.53 km²Rural
Magungunay8381.57%−0.87% a yearabout 4.32 km²Rural
Mamat-ing Norte7891.48%−0.03% a yearabout 3.59 km²Rural
Mamat-ing Sur1,3062.44%−0.22% a yearabout 1.67 km²Rural
Nagsidorisan9401.76%−2.40% a yearabout 1.47 km²Rural
Natividad2,9305.48%−1.61% a yearabout 0.905 km²Urban
Ortiz2,6324.92%−1.34% a yearabout 0.822 km²Urban
Ribsuan1,1402.13%2.30% a yearabout 2.07 km²Rural
San Antonio8531.6%−2.10% a yearabout 2.28 km²Rural
San Isidro8961.68%−0.08% a yearabout 4.05 km²Rural
Sili1,2932.42%0.28% a yearabout 0.989 km²Rural
Suguidan Norte9921.86%1.77% a yearabout 1.40 km²Rural
Suguidan Sur9401.76%1.96% a yearabout 3.64 km²Rural
Tuddingan1,9383.63%4.39% a yearabout 3.11 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

Naguilian covers 103.35 km² of land, 517 people for every km² in 2024. Its land rises to 538 m above the sea and it lies inland.
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
103.35 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
517 people per km²[6]
Coordinates
16.53429° N, 120.40667° E[3]The point inside its border farthest from every edge, so it always falls within the place.
Height above the sea[29]
Lowest
6 m
Average
107 m
Highest
538 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

No coastline: it lies inland.

Rivers[30]

  1. Naguilian River13.9 of 50.6 km

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[31]

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.

At Baguio City, the nearest PAGASA station, 25 km away[32]Averages for 1991 to 2020: 3,824 mm of rain on 152 days a year; 19.5 °C on average

Rain each month Average temperature

The figures by month

Climate at Baguio City, 1991 to 2020, by month
MonthRainRainy daysAverageHighLow
January16 mm318.1 °C23.1 °C13.0 °C
February24 mm318.5 °C23.7 °C13.4 °C
March51 mm519.7 °C24.8 °C14.5 °C
April100 mm820.7 °C25.5 °C15.9 °C
May340 mm1820.6 °C24.7 °C16.4 °C
June406 mm1920.4 °C24.3 °C16.5 °C
July773 mm2419.6 °C23.1 °C16.2 °C
August963 mm2519.3 °C22.3 °C16.2 °C
September537 mm2219.6 °C23.0 °C16.1 °C
October477 mm1319.6 °C23.6 °C15.6 °C
November96 mm719.5 °C23.9 °C15.1 °C
December42 mm518.8 °C23.5 °C14.1 °C
The year3,824 mm15219.5 °C23.8 °C15.2 °C

A station's figures describe the place around it only roughly: inland and in the hills it may be cooler and wetter. The station stands 1,510 m above the sea.

Life & Economy

About 9 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
9.0% of people[19]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 9 of every 100 people in Naguilian lived below the poverty line in 2021 (9.0%)[19]

The PSA's model for every town puts it between 7.5% and 10.5%, with 90% confidence.

Public places

  • 20government offices
  • 7hospitals and health centres
  • 41schools
  • 15places of worship
  • 1market
  • 1station or terminal
  • 3parks
  • 1monument or memorial

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.

Government offices7

Hospitals and health centres7

Markets1

Stations and terminals1

Parks3

Monuments and memorials1

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

Government & Leaders

A mayor leads Naguilian. 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.[13, 14]

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 La Union[17, 18]

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
    Nieri Tilos Flores[20]
    Vice mayor
    Reynaldo Jacildo Flores[20]

  2. 2022–2025

    Mayor
    Nieri Tilos Flores[21]
    Vice mayor
    Reynaldo Jacildo Flores[21]

  3. 2019–2022

    Mayor
    Nieri Tilos Flores[22]
    Vice mayor
    Reynaldo Jacildo Flores[22]

  4. 2016–2019

    Mayor
    Reynaldo Jacildo Flores[23]
    Vice mayor
    Abraham Pulanco Rimando[23]

  5. 2013–2016

    Mayor
    Reynaldo Jacildo Flores[24]
    Vice mayor
    Abraham Pulanco Rimando[24]

  6. 2010–2013

    Mayor
    Reynaldo Jacildo Flores[25]
    Vice mayor
    Abraham Pulanco Rimando[25]

  7. 2007–2010

    Mayor
    Abraham Pulanco Rimando[26]
    Vice mayor
    Reynaldo Jacildo Flores[26]

  8. 2004–2007

    Mayor
    Reynaldo Flores[27]
    Vice mayor
    Abraham Rimando[27]

  9. 2001–2004

    Mayor
    Reynaldo J. Flores[28]
    Vice mayor
    Ceferino V. Argueza[28]
Mayors and vice mayors of Naguilian, by term
TermMayorVice mayor
2025–2028In office as of February 2026Nieri Tilos Flores[20]Reynaldo Jacildo Flores[20]
2022–2025Nieri Tilos Flores[21]Reynaldo Jacildo Flores[21]
2019–2022Nieri Tilos Flores[22]Reynaldo Jacildo Flores[22]
2016–2019Reynaldo Jacildo Flores[23]Abraham Pulanco Rimando[23]
2013–2016Reynaldo Jacildo Flores[24]Abraham Pulanco Rimando[24]
2010–2013Reynaldo Jacildo Flores[25]Abraham Pulanco Rimando[25]
2007–2010Abraham Pulanco Rimando[26]Reynaldo Jacildo Flores[26]
2004–2007Reynaldo Flores[27]Abraham Rimando[27]
2001–2004Reynaldo J. Flores[28]Ceferino V. Argueza[28]

History & Identity

Naguilian's fiesta and days

Everything listed for Naguilian in Now

Created
Naguilian was separated from Bauang in 1839. No creation law was found; the provincial government's page gives only the year.[9]

How it got its name

The name comes from the Iloko phrase Nag-ili-an dagiti gan-ganaet, meaning a spot where people from elsewhere come to stay. It is built on the root word ili, meaning town.[11]

Its story

Settlers from the shore of La Union, who had built Bauang, followed the river inland. They found a fertile valley and built a colony where two rivers fork.[11]

The town broke away from Bauang in 1839, which the town says was the same time as the hundredth year of its Catholic church.[11]

It was one of the twelve towns of La Union when the province was set up by royal decree in 1850.[11]

Under the Americans, a provincial resolution split the old territory into three parts. One stayed Naguilian, one went to Burgos and one went to Bagulin.[11]

Timeline

  1. 1839

    Naguilian separated from Bauang.[9]

  2. 1850

    La Union became a province and Naguilian was one of its twelve towns.[11]

  3. 9 October 1903

    Act No. 935 cut the municipalities of La Union from fifteen to twelve and kept Naguilian with its present boundaries.[12]

Nearby

Naguilian shares a border with 6 places.

How it compares

Naguilian beside La Union, and where it stands among the cities and municipalities of La Union.

Naguilian beside La Union
FigureNaguilianLa UnionRank among the cities and municipalities of La Union
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 glossary53,443[1, 2]825,0725th of 20
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 glossary0.57% a year[1, 2]faster0.08% a year3rd of 20
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 glossary517[6]less crowded52813th of 20
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 glossary103.35 km²[6]1,562.16 km²5th of 20
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 glossary3.9[1, 2]higher3.7not 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 glossary10.4%[5]lower20.8%not ranked

How far, in a straight line[3]

San Fernando City, the capital of La Union
8.8 km northwest
Manila
225.3 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. BurgosLa Union6.4 km east
  2. BauangLa Union7.1 km west
  3. San Fernando CityLa Union8.8 km northwest
  4. CabaLa Union11.0 km south
  5. BagulinLa Union11.1 km northeast
  6. SablanBenguet12.2 km east

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.Provincial Government of La Union. Municipality of Naguilian - Provincial Government of La Union. Read by Scene October 2, 2026. Philippine government work, no copyright (Republic Act No. 8293, Section 176.1). Open the source
  10. 10.Municipality of Naguilian, La Union. Official website. Read by Scene October 3, 2026. Philippine government work, no copyright (Republic Act No. 8293, Section 176.1). Open the source
  11. 11.Municipality of Naguilian. Brief History. Read by Scene October 2, 2026. Philippine government work, no copyright (Republic Act No. 8293, Section 176.1). Open the source
  12. 12.Philippine Commission. Act No. 935 (9 October 1903), reducing the fifteen municipalities of La Union to twelve. Published October 9, 1903. Read by Scene October 2, 2026. Philippine government work, no copyright (Republic Act No. 8293, Section 176.1). Open the source
  13. 13.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
  14. 14.1986 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
  15. 15.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
  16. 16.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
  17. 17.1986 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
  18. 18.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
  19. 19.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
  20. 20.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
  21. 21.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
  22. 22.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
  23. 23.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
  24. 24.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
  25. 25.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
  26. 26.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
  27. 27.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
  28. 28.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
  29. 29.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
  30. 30.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
  31. 31.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
  32. 32.Philippine Atmospheric, Geophysical and Astronomical Services Administration (PAGASA), Climatology and Agrometeorology Division. Climatological Normals, 1991-2020, by synoptic station (one PDF each). Published January 2022. 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
  35. 35.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.

See something wrong on this page? Write to hello@scene.ph with the page address. We check every report against the source.

Cite this page

Scene.ph. “Naguilian, La Union.” Scene Atlas. Updated October 9, 2026. https://scene.ph/atlas/la-union/naguilian