Municipality

Tagudin

Tagudin is a municipality in Ilocos Sur, Ilocos Region, Philippines. Its population was 41,606 in the 2024 census, and it has 43 barangays.

Population: 2024 Census
Places: PSGC 2Q 2026
Checked by Scene: October 8, 2026
Page updated: October 9, 2026

PlacesPeopleDensityGrowth

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
41,606
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 9.1% from 2010 to 2024
Rank by peopleSources
4th
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 6 of every 100 people in Ilocos Sur lived in Tagudin in 2024 (5.86%)
Inside itSources
43
barangays
LandSources
48.71 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: Tagudin's land would fill a square about 7.0 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: 854 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 9 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
10,530
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
3.4%
About 3 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: 0102933000^[4]Formerly 012933000
ZIP code: 2714^{[14, 15]}

People

Tagudin had 41,606 people in the 2024 census, up 9.1% 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.

Tagudin had the 4th most people of the 34 cities and municipalities of Ilocos Sur in 2024^[1]

1Candon City61,315
2Vigan City54,498
3Narvacan46,265
4Tagudin41,606
5Santa Cruz41,296
6Cabugao38,981
7Bantay37,088

All 34 cities and municipalities of Ilocos Sur

In 2024, the 10 barangays with the most people held about 41 of every 100 of its people^[2]

Libtong2,4236 in 100
Pudoc East2,1795 in 100
Ambalayat1,9795 in 100
Dardarat1,9165 in 100
Becques1,8004 in 100
Pudoc West1,5954 in 100
Del Pilar1,4003 in 100
Bitalag1,3003 in 100
Tampugo1,2363 in 100
Ranget1,2213 in 100

See all 43 barangays of Tagudin

Age structure · 2020 Census^[33]People living in households, by age and sex

About 26 of every 100 are children under 15 (26.4%)
About 65 of every 100 are of working age, 15 to 64 (65.4%)
About 8 of every 100 are 65 or older (8.2%)

MenWomen

The figures by age

People by age group, men and women
Age	People	Men	Women
0 - 4	3,255	1,700	1,555
5 - 9	3,693	1,914	1,779
10 - 14	3,966	2,048	1,918
15 - 19	3,998	2,083	1,915
20 - 24	3,597	1,875	1,722
25 - 29	3,230	1,649	1,581
30 - 34	2,943	1,551	1,392
35 - 39	2,794	1,436	1,358
40 - 44	2,606	1,335	1,271
45 - 49	2,348	1,206	1,142
50 - 54	2,153	1,080	1,073
55 - 59	1,838	925	913
60 - 64	1,548	738	810
65 - 69	1,200	535	665
70 - 74	865	358	507
75 - 79	592	220	372
80 years and over	747	203	544

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: 41,606^{[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: 10,530^{[1, 2]}
People in each household, 2024: 3.9 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: 5.86%^[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: 3.4% (1,400 people)^[5]
Men and women, 2020: 20,856 men, 20,517 women^[33]People living in households

Population at each census, with its source
Census	Population	Growth since the census before	Households	People per household
2024as of July 1, 2024	41,606^{[1, 2]}	0.04% a year	10,530	3.9
2020as of May 1, 2020	41,538^[1]	1.18% a year	—	—
2015as of August 1, 2015	39,277^[1]	0.57% a year	—	—
2010as of May 1, 2010	38,122^[1]	—	—	—
2007as of August 1, 2007; as it was then	35,791^[31]	0.54% a year	—	—
2000as of May 1, 2000; on today’s borders	34,427^{[31, 32]}	2.49% a year	—	—
1995as of September 1, 1995; as it was then	30,697^[31]	0.88% a year	—	—
1990as of May 1, 1990; as it was then	29,295^[31]	2.26% a year	—	—
1980as of May 1, 1980; as it was then	23,432^[31]	0.47% a year	—	—
1975as of May 1, 1975; as it was then	22,887^[31]	3.18% a year	—	—
1970as of May 6, 1970; as it was then	19,575^[31]	0.72% a year	—	—
1960as of February 15, 1960; as it was then	18,191^[31]	—	—	—

Barangays

Tagudin is made up of 43 barangays.

Barangays of Tagudin. Each column heading sorts the table.
	^{[2, 3, 5, 6, 7]}	Share (2024)			Urban or rural
Ag-aguman	726	1.74%	−0.07% a year	about 0.868 km²	Rural
Ambalayat	1,979	4.76%	−0.40% a year	about 8.39 km²	Rural
Baracbac	957	2.3%	0.13% a year	about 1.56 km²	Rural
Bario-an	543	1.31%	0.18% a year	about 0.527 km²	Rural
Baritao	605	1.45%	−1.08% a year	about 0.757 km²	Rural
Becques	1,800	4.33%	−1.42% a year	about 2.40 km²	Rural
Bimmanga	1,172	2.82%	1.36% a year	about 0.26 km²	Rural
Bio	1,104	2.65%	−0.39% a year	about 0.99 km²	Rural
Bitalag	1,300	3.12%	−0.40% a year	about 1.84 km²	Rural
Borono	1,017	2.44%	0.07% a year	about 1.19 km²	Rural
Bucao East	303	0.73%	−0.78% a year	about 1.02 km²	Rural
Bucao West	477	1.15%	0.66% a year	about 0.484 km²	Rural
Cabaroan	796	1.91%	1.63% a year	about 0.557 km²	Rural
Cabugbugan	925	2.22%	−0.59% a year	about 3.03 km²	Rural
Cabulanglangan	629	1.51%	3.27% a year	about 1.47 km²	Rural
Dacutan	561	1.35%	−0.63% a year	about 0.805 km²	Rural
Dardarat	1,916	4.61%	−1.00% a year	about 0.792 km²	Rural
Del Pilar	1,400	3.36%	−0.10% a year	about 0.645 km²	Urban
Farola	1,039	2.5%	0.73% a year	about 0.306 km²	Rural
Gabur	730	1.75%	0.57% a year	about 1.25 km²	Rural
Garitan	1,083	2.6%	−0.15% a year	about 2.03 km²	Rural
Jardin	332	0.8%	−1.66% a year	about 0.101 km²	Rural
Lacong	874	2.1%	−1.96% a year	about 0.675 km²	Rural
Lantag	430	1.03%	2.94% a year	about 2.46 km²	Rural
Las-ud	1,122	2.7%	0.32% a year	about 0.838 km²	Rural
Libtong	2,423	5.82%	0.65% a year	about 1.52 km²	Rural
Lubnac	954	2.29%	−0.81% a year	about 1.63 km²	Rural
Magsaysay	709	1.7%	−1.46% a year	about 0.121 km²	Rural
Malacañang	414	1%	−0.79% a year	about 0.0919 km²	Rural
Pacac	926	2.23%	−0.38% a year	about 1.32 km²	Rural
Pallogan	969	2.33%	−0.07% a year	about 5.17 km²	Rural
Pudoc East	2,179	5.24%	0.83% a year	about 5.17 km²	Rural
Pudoc West	1,595	3.83%	2.48% a year	about 1.90 km²	Rural
Pula	480	1.15%	−0.88% a year	about 1.05 km²	Rural
Quirino	640	1.54%	−0.95% a year	about 0.128 km²	Rural
Ranget	1,221	2.93%	0.58% a year	about 1.41 km²	Rural
Rizal	660	1.59%	−3.45% a year	about 0.239 km²	Rural
Salvacion	617	1.48%	1.37% a year	about 0.232 km²	Rural
San Miguel	428	1.03%	1.88% a year	about 0.29 km²	Rural
Sawat	1,119	2.69%	1.47% a year	about 1.02 km²	Rural
Tallaoen	971	2.33%	0.86% a year	about 0.815 km²	Rural
Tampugo	1,236	2.97%	−0.52% a year	about 0.868 km²	Rural
Tarangotong	245	0.59%	−1.14% a year	about 0.649 km²	Rural

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

Tagudin covers 48.71 km² of land, 854 people for every km² in 2024. Its land rises to 367 m above the sea and it has 9.5 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: 48.71 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: 854 people per km²^[6]
Coordinates: 16.93883° N, 120.45464° E^[3]The point inside its border farthest from every edge, so it always falls within the place.

Height above the sea^[28]

Lowest: 1 m
Average: 46 m
Highest: 367 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

9.5 km of coastline^[29]

Rivers^[29]

Amburayan River8.9 of 75.2 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^[30]

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 17 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: 17.2% of people^[18]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 17 of every 100 people in Tagudin lived below the poverty line in 2021 (17.2%)^[18]

The PSA's model for every town puts it between 14.8% and 19.6%, with 90% confidence.

Public places

1government office
1hospital or health centre
25schools
1place of worship
2markets
1station or terminal

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 Tagudin. 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.^{[12, 13]}

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^{[16, 17]}

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.

2025–2028In office as of February 2026
Mayor
Evangeline Ingoy Verzosa^[19]
Vice mayor
Bernardo Fulgencio Tovera Jr.^[19]
2022–2025
Mayor
Roque Supnet Verzosa Jr.^[20]
Vice mayor
Evangeline Ingoy Verzosa^[20]
2019–2022
Mayor
Roque Supnet Verzosa Jr.^[21]
Vice mayor
Bernardo Fulgencio Tovera Jr.^[21]
2016–2019
Mayor
Roque Supnet Verzosa Jr.^[22]
Vice mayor
Bernardo Fulgencio Tovera Jr.^[22]
2013–2016
Mayor
Jose Visque Bunoan Jr.^[23]
Vice mayor
Bernardo Fulgencio Tovera Jr.^[23]
2010–2013
Mayor
Roque Supnet Verzosa Jr.^[24]
Vice mayor
Rogelio Acosta Lorenzana^[24]
2007–2010
Mayor
Roque Supnet Verzosa Jr.^[25]
Vice mayor
Rogelio Acosta Lorenzana^[25]
2004–2007
Mayor
Roque Verzosa Jr.^[26]
Vice mayor
Peter Manzano^[26]
2001–2004
Mayor
Jose V. Bunoan Jr.^[27]
Vice mayor
Rogelio A. Lorenzana^[27]

Mayors and vice mayors of Tagudin, by term
Term	Mayor	Vice mayor
2025–2028In office as of February 2026	Evangeline Ingoy Verzosa^[19]	Bernardo Fulgencio Tovera Jr.^[19]
2022–2025	Roque Supnet Verzosa Jr.^[20]	Evangeline Ingoy Verzosa^[20]
2019–2022	Roque Supnet Verzosa Jr.^[21]	Bernardo Fulgencio Tovera Jr.^[21]
2016–2019	Roque Supnet Verzosa Jr.^[22]	Bernardo Fulgencio Tovera Jr.^[22]
2013–2016	Jose Visque Bunoan Jr.^[23]	Bernardo Fulgencio Tovera Jr.^[23]
2010–2013	Roque Supnet Verzosa Jr.^[24]	Rogelio Acosta Lorenzana^[24]
2007–2010	Roque Supnet Verzosa Jr.^[25]	Rogelio Acosta Lorenzana^[25]
2004–2007	Roque Verzosa Jr.^[26]	Peter Manzano^[26]
2001–2004	Jose V. Bunoan Jr.^[27]	Rogelio A. Lorenzana^[27]

History & Identity

Stories from Ilocos Region

Tagudin has no Story of its own yet. This one is about Ilocos Region, which Tagudin is part of.

Film, 1:00
Ilocos Region
Ilocos: our dialect, salt and a union
The oldest name of the Ilocos is said to mean 'our dialect'. One Ilocos split in 1818, La Union was named in 1850, and Pangasinan is said to mean 'where salt is made'.
Why It's Called That

All Stories

Created: The town's own history page says Tagudin was one of the first towns founded by Spanish soldiers and Augustinian missionaries on 5 January 1586. No creation law was found; it is a Spanish-era town.^[9]

How it got its name

Local traditionOne version says the village was named for Tagudin, an ancestral spirit believed to guard the place before the Spaniards came.^[9]

Local traditionThe more popular version says the name comes from the pagtagudan, a drying rack on which raw cotton was spread and brushed into thread. In the tale, a woman answered a Spanish officer's questions with the words for her rack.^[9]

Its story

Tagudin's own history page says Spanish soldiers and Augustinian friars founded the town on 5 January 1586.^[9]

Under Spain it was the capital of Amburayan, a sub-province of the Mountain Province, which also took in Suyo, Sugpon and other towns.^[9]

In 1818 Tagudin became part of Ilocos Sur and the southern gateway of the province.^[9]

In 1907 the Philippine Commission moved the municipality from Ilocos Sur into the sub-province of Amburayan and made it the sub-province's capital.^[11]

The town page credits Father Juan Sorolla with building two sundials in 1848, which it calls the first built by Spaniards in the Philippines, and says the ICM Missionary Sisters began their Philippine mission here.^[9]

Timeline

5 January 1586
Spanish soldiers and Augustinians founded Tagudin, according to the town's history page.^[9]
1818
Tagudin became part of Ilocos Sur.^[9]
1848
Father Juan Sorolla built two sundials, per the town's history page.^[9]
15 May 1907
Act No. 1646 transferred Tagudin to the sub-province of Amburayan as its capital.^[11]

Nearby

Tagudin shares a border with 5 places.

How it compares

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

Tagudin beside Ilocos Sur
Figure	Tagudin	Ilocos Sur	Rank 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 glossary	41,606^{[1, 2]}	709,991	4th 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 glossary	0.04% a year^{[1, 2]}slower	0.13% a year	24th 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 glossary	854^[6]more crowded	268	5th 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 glossary	48.71 km²^[6]	2,651.49 km²	21st 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 glossary	3.9^{[1, 2]}higher	3.8	not 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 glossary	3.4%^[5]lower	10.6%	not ranked

Shares a border with^[3]

How far, in a straight line^[3]

Vigan City, the capital of Ilocos Sur: 69.8 km north
Manila: 267.6 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]

BangarLa Union7.2 km south
SuyoIlocos Sur8.7 km northeast
SudipenLa Union11.6 km south
AlilemIlocos Sur12.2 km southeast
Santa CruzIlocos Sur14.4 km north
BalaoanLa Union15.6 km south

Sources

Page updated October 9, 2026. Sources checked by Scene October 8, 2026.

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.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.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.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.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.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.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.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.Local Government Unit of Tagudin. About Tagudin (Overview, History). Read by Scene October 2, 2026. Philippine government work, no copyright (Republic Act No. 8293, Section 176.1). Open the source
10.Municipality of Tagudin, 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
11.Philippine Commission. Act No. 1646, May 15, 1907. Published 1907. Read by Scene October 2, 2026. Philippine government work, no copyright (Republic Act No. 8293, Section 176.1). Open the source
12.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
13.1986 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
14.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
15.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
16.1986 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
17.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
18.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
19.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
20.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
21.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
22.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
23.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
24.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
25.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
26.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
27.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
28.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
29.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
30.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
31.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
32.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
33.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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Scene.ph. “Tagudin, Ilocos Sur.” Scene Atlas. Updated October 9, 2026. https://scene.ph/atlas/ilocos-sur/tagudin