Municipality

Oton

Oton is a municipality in Iloilo, Western Visayas, Philippines. Its population was 99,920 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

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
99,920
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 21% from 2010 to 2024
Rank by peopleSources
2nd
of the 44 cities and municipalities of Iloilo 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 5 of every 100 people in Iloilo lived in Oton in 2024 (4.8%)
Inside itSources
37
barangays
LandSources
85.59 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: Oton's land would fill a square about 9.3 km on each side. That is only a way to picture its size: its real shape is on the map.More in the glossary
Average density, 2024: 1,167 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 12 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
28,279
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
3.5 people in each, on average, in 2024
Town or countrySources
51.4%
About 51 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: 0603034000^[4]Formerly 063034000
ZIP code: 5020^{[14, 15]}

People

Oton had 99,920 people in the 2024 census, up 21% 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.

Oton had the 2nd most people of the 44 cities and municipalities of Iloilo in 2024^[1]

1Iloilo City473,728
2Oton99,920
3Passi City90,313
4Lambunao80,724
5Pototan78,919
6Dumangas75,239
7Pavia74,594

All 44 cities and municipalities of Iloilo

In 2024, the 10 barangays with the most people held about 56 of every 100 of its people^[2]

Abilay Norte8,7809 in 100
Buray6,8357 in 100
Cagbang6,7237 in 100
Trapiche6,2596 in 100
Botong5,3915 in 100
Poblacion South5,3105 in 100
Pakiad4,6285 in 100
Poblacion East4,4134 in 100
Polo Maestra Bita3,7344 in 100
Caboloan Norte3,6784 in 100

See all 37 barangays of Oton

Age structure · 2020 Census^[34]People living in households, by age and sex

About 26 of every 100 are children under 15 (26.4%)
About 66 of every 100 are of working age, 15 to 64 (65.9%)
About 8 of every 100 are 65 or older (7.8%)

MenWomen

The figures by age

People by age group, men and women
Age	People	Men	Women
0 - 4	8,334	4,253	4,081
5 - 9	8,703	4,593	4,110
10 - 14	8,906	4,597	4,309
15 - 19	8,540	4,377	4,163
20 - 24	8,261	4,206	4,055
25 - 29	8,080	4,076	4,004
30 - 34	7,770	3,943	3,827
35 - 39	6,904	3,536	3,368
40 - 44	6,370	3,282	3,088
45 - 49	5,597	2,791	2,806
50 - 54	5,186	2,618	2,568
55 - 59	4,469	2,209	2,260
60 - 64	3,668	1,771	1,897
65 - 69	2,877	1,327	1,550
70 - 74	1,950	839	1,111
75 - 79	1,305	488	817
80 years and over	1,517	503	1,014

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: 99,920^{[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: 28,279^{[1, 2]}
People in each household, 2024: 3.5 on average^{[1, 2]}
Share of Iloilo, 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: 4.8%^[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: 51.4% (51,338 people)^[5]
Men and women, 2020: 49,409 men, 49,028 women^[34]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	99,920^{[1, 2]}	0.34% a year	28,279	3.5
2020as of May 1, 2020	98,509^[1]	2.13% a year	—	—
2015as of August 1, 2015	89,115^[1]	1.46% a year	—	—
2010as of May 1, 2010	82,572^[1]	—	—	—
2007as of August 1, 2007; as it was then	77,621^[32]	2.40% a year	—	—
2000as of May 1, 2000; on today’s borders	65,374^{[32, 33]}	3.05% a year	—	—
1995as of September 1, 1995; as it was then	56,821^[32]	1.63% a year	—	—
1990as of May 1, 1990; as it was then	52,125^[32]	2.42% a year	—	—
1980as of May 1, 1980; as it was then	41,044^[32]	2.33% a year	—	—
1975as of May 1, 1975; as it was then	36,566^[32]	2.16% a year	—	—
1970as of May 6, 1970; as it was then	32,862^[32]	1.85% a year	—	—
1960as of February 15, 1960; as it was then	27,246^[32]	—	—	—

Barangays

Oton is made up of 37 barangays.

Barangays of Oton. Each column heading sorts the table.
	^{[2, 3, 5, 6, 7]}	Share (2024)			Urban or rural
Abilay Norte	8,780	8.79%	−0.49% a year	about 3.51 km²	Urban
Abilay Sur	1,330	1.33%	0.74% a year	about 2.50 km²	Rural
Alegre	2,690	2.69%	3.58% a year	about 0.61 km²	Rural
Batuan Ilaud	944	0.94%	0.15% a year	about 1.58 km²	Rural
Batuan Ilaya	1,262	1.26%	0.64% a year	about 2.77 km²	Rural
Bita Norte	636	0.64%	−4.39% a year	about 1.54 km²	Rural
Bita Sur	598	0.6%	2.03% a year	about 1.56 km²	Rural
Botong	5,391	5.4%	0.67% a year	about 3.00 km²	Urban
Buray	6,835	6.84%	0.38% a year	about 3.46 km²	Urban
Cabanbanan	2,930	2.93%	0.81% a year	about 1.35 km²	Rural
Caboloan Norte	3,678	3.68%	−0.05% a year	about 5.33 km²	Urban
Caboloan Sur	782	0.78%	−1.53% a year	about 1.38 km²	Rural
Cadinglian	1,771	1.77%	0.80% a year	about 1.65 km²	Rural
Cagbang	6,723	6.73%	3.37% a year	about 2.65 km²	Urban
Calam-isan	1,314	1.32%	−0.07% a year	about 1.78 km²	Rural
Galang	1,015	1.02%	−2.52% a year	about 2.25 km²	Rural
Lambuyao	3,571	3.57%	2.39% a year	about 3.81 km²	Rural
Mambog	802	0.8%	−3.34% a year	about 2.15 km²	Rural
Pakiad	4,628	4.63%	5.32% a year	about 3.85 km²	Urban
Poblacion East	4,413	4.42%	0.97% a year	about 0.361 km²	Rural
Poblacion North	1,023	1.02%	−5.96% a year	about 0.185 km²	Rural
Poblacion South	5,310	5.31%	−0.76% a year	about 0.675 km²	Urban
Poblacion West	3,044	3.05%	−0.60% a year	about 0.524 km²	Rural
Polo Maestra Bita	3,734	3.74%	−0.31% a year	about 3.73 km²	Urban
Rizal	2,204	2.21%	−0.75% a year	about 2.91 km²	Rural
Salngan	674	0.67%	−0.94% a year	about 1.25 km²	Rural
Sambaludan	1,016	1.02%	−1.82% a year	about 2.61 km²	Rural
San Antonio	2,340	2.34%	−0.95% a year	about 0.702 km²	Rural
San Nicolas	3,174	3.18%	−0.13% a year	about 0.577 km²	Rural
Santa Clara	1,781	1.78%	3.26% a year	about 4.19 km²	Rural
Santa Monica	2,856	2.86%	−0.93% a year	about 5.26 km²	Rural
Santa Rita	1,950	1.95%	−1.75% a year	about 2.72 km²	Rural
Tagbac Norte	1,299	1.3%	0.28% a year	about 2.78 km²	Rural
Tagbac Sur	1,794	1.8%	−0.04% a year	about 3.99 km²	Rural
Trapiche	6,259	6.26%	−0.87% a year	about 4.45 km²	Urban
Tuburan	675	0.68%	0.11% a year	about 0.991 km²	Rural
Turog-Turog	694	0.69%	−0.58% a year	about 1.32 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

Oton covers 85.59 km² of land, 1,167 people for every km² in 2024. Its land rises to 89 m above the sea and it has 9 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: 85.59 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: 1,167 people per km²^[6]
Coordinates: 10.72656° N, 122.46519° E^[3]The point inside its border farthest from every edge, so it always falls within the place.

Height above the sea^[28]

Lowest: Sea level
Average: 18 m
Highest: 89 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

9.0 km of coastline^[29]

Rivers^[29]

Lambuyao Creek8.1 km
Iloilo River4.1 of 15.9 km
Calajunan Creek3.4 of 9.3 km
Batiano River1.3 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.

At Iloilo City, the nearest PAGASA station, 9 km away^[31]Averages for 1991 to 2009: 2,085 mm of rain on 132 days a year; 27.7 °C on average

Rain each month Average temperature

The figures by month

Climate at Iloilo City, 1991 to 2009, by month
Month	Rain	Rainy days	Average	High	Low
January	39 mm	6	26.5 °C	30.3 °C	22.7 °C
February	36 mm	5	27.0 °C	31.0 °C	23.0 °C
March	48 mm	6	27.9 °C	32.3 °C	23.5 °C
April	69 mm	5	29.1 °C	33.8 °C	24.4 °C
May	160 mm	9	28.9 °C	33.2 °C	24.6 °C
June	263 mm	16	28.2 °C	32.1 °C	24.4 °C
July	361 mm	18	27.6 °C	31.0 °C	24.1 °C
August	351 mm	17	27.5 °C	31.0 °C	24.0 °C
September	278 mm	15	27.6 °C	31.1 °C	24.0 °C
October	225 mm	15	27.7 °C	31.5 °C	23.9 °C
November	131 mm	11	27.5 °C	31.4 °C	23.7 °C
December	124 mm	9	26.8 °C	30.6 °C	23.0 °C
The year	2,085 mm	132	27.7 °C	31.6 °C	23.8 °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 5 m above the sea.

Life & Economy

About 10 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: 9.5% 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 10 of every 100 people in Oton lived below the poverty line in 2021 (9.5%)^[18]

The PSA's model for every town puts it between 7.9% and 11.2%, with 90% confidence.

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

Public places

33government offices
11hospitals and health centres
26schools
9places of worship
2markets
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.

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

Government offices26

20 more government offices are listed on the pages of the barangays they stand in. See the 37 barangays of Oton

Hospitals and health centres11

5 more hospitals and health centres are listed on the pages of the barangays they stand in. See the 37 barangays of Oton

Markets2

Parks3

Monuments and memorials1

Inday · Lambuyao

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

Government & Leaders

A mayor leads Oton. 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: 1st district of Iloilo^{[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
Sofronio Lorania Fusin Jr.^[19]
Vice mayor
Jose Neil Portugalete Olivares^[19]
2022–2025
Mayor
Sofronio Lorania Fusin Jr.^[20]
Vice mayor
Jose Neil Portugalete Olivares^[20]
2019–2022
Mayor
Carina Veloso Flores^[21]
Vice mayor
Vicente Borres Flores Jr.^[21]
2016–2019
Mayor
Carina Veloso Flores^[22]
Vice mayor
Vicente Borres Flores Jr.^[22]
2013–2016
Mayor
Vicente Borres Flores Jr.^[23]
Vice mayor
Jose Neil Portugalete Olivares^[23]
2010–2013
Mayor
Vicente Borres Flores Jr.^[24]
Vice mayor
Jose Neil Portugalete Olivares^[24]
2007–2010
Mayor
Vicente Borres Flores Jr.^[25]
Vice mayor
Jose Neil Portugalete Olivares^[25]
2004–2007
Mayor
Carina Flores^[26]
Vice mayor
Vicente Flores Jr.^[26]
2001–2004
Mayor
Carina V. Flores^[27]
Vice mayor
Jose B. Olivares Jr.^[27]

Mayors and vice mayors of Oton, by term
Term	Mayor	Vice mayor
2025–2028In office as of February 2026	Sofronio Lorania Fusin Jr.^[19]	Jose Neil Portugalete Olivares^[19]
2022–2025	Sofronio Lorania Fusin Jr.^[20]	Jose Neil Portugalete Olivares^[20]
2019–2022	Carina Veloso Flores^[21]	Vicente Borres Flores Jr.^[21]
2016–2019	Carina Veloso Flores^[22]	Vicente Borres Flores Jr.^[22]
2013–2016	Vicente Borres Flores Jr.^[23]	Jose Neil Portugalete Olivares^[23]
2010–2013	Vicente Borres Flores Jr.^[24]	Jose Neil Portugalete Olivares^[24]
2007–2010	Vicente Borres Flores Jr.^[25]	Jose Neil Portugalete Olivares^[25]
2004–2007	Carina Flores^[26]	Vicente Flores Jr.^[26]
2001–2004	Carina V. Flores^[27]	Jose B. Olivares Jr.^[27]

History & Identity

Stories from Western Visayas

Oton has no Story of its own yet. This one is about Western Visayas, which Oton is part of.

Film, 0:59
Western Visayas
Western Visayas: ten datus, two rivers
Legend says ten Bornean datus bought Panay for a golden hat. Iloilo, Aklan and Antique tell the legend with two different landing rivers, and its best-known book was finished in 1904.
This Happened Here

All Stories

Oton's fiesta and days

Town fiesta of Oton (Immaculate Concepcion)Town fiesta · Immaculate Concepcion · Every 8 December · next Tuesday, 8 December 2026

Everything listed for Oton in Now

How it got its name

Local traditionThe municipality's own history page says the name is a Spanish version of the phrase ogtong adlaw: Spaniards asked a native the time and he answered noontime.^[10]

Its story

The town's page says Oton was already a flourishing Malay settlement in the early 13th century, with a port on the Batiano River used for trade with Chinese merchants.^[10]

It says that in 1569 Fray Martin de Rada made Oton a hiding place for Legazpi's fleet.^[10]

It says that on 3 May 1572 Rada signed the acceptance of Oton as a pueblo of the Augustinian order, and that Oton became capital of a large province of Panay and neighboring islands in the same year.^[10]

The provincial page says that in 1603 a local leader named Tapar set up a church mixing Christian principles, the first attempt to resist Christian influence.^[11]

Timeline

1570
A church is said to have been built at Oton by Fr. Martin de Rada.^[10]
3 May 1572
Rada formally accepted Oton as a pueblo; the town keeps this as its Foundation Day.^[10]
1603
Tapar founded a church of modified Christian principles, the first attempt to counter Christian influence.^[11]

Nearby

Oton shares a border with Iloilo City, Pavia, San Miguel and Tigbauan.

How it compares

Oton beside Iloilo, and where it stands among the cities and municipalities of Iloilo.

Oton beside Iloilo
Figure	Oton	Iloilo	Rank among the cities and municipalities of Iloilo
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	99,920^{[1, 2]}	2,082,616	2nd of 44
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	0.34% a year^{[1, 2]}slower	0.36% a year	20th of 44
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	1,167^[6]more crowded	442	4th of 44
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	85.59 km²^[6]	4,707.37 km²	26th of 44
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	3.5^{[1, 2]}lower	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	51.4%^[5]higher	13.9%	not ranked

Shares a border with^[3]

How far, in a straight line^[3]

Iloilo City, the capital of Iloilo: 10.4 km east
Manila: 458.9 km north

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

The nearest towns and cities^[3]

San MiguelIloilo7.0 km north
PaviaIloilo10.1 km northeast
TigbauanIloilo10.2 km west
Iloilo CityIloilo10.4 km east
AlimodianIloilo10.6 km north
LeonIloilo13.4 km northwest

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: Western Visayas (OpenSTAT table 0061A6DTPH5). Published August 5, 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.Municipality of Oton, Iloilo. Official website. Read by Scene October 3, 2026. Philippine government work, no copyright (Republic Act No. 8293, Section 176.1). Open the source
10.Municipality of Oton. Historical Heritage. Read by Scene October 3, 2026. Philippine government work, no copyright (Republic Act No. 8293, Section 176.1). Open the source
11.Iloilo Provincial Government. Oton (municipality page). Read by Scene October 3, 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 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
32.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
33.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
34.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. “Oton, Iloilo.” Scene Atlas. Updated October 9, 2026. https://scene.ph/atlas/iloilo/oton