Municipality

Oas

Oas is a municipality in Albay, Bicol Region, Philippines. Its population was 64,890 in the 2024 census, and it has 53 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
64,890
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 0.2% from 2010 to 2024
Rank by peopleSources
10th
of the 18 cities and municipalities of Albay 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 Albay lived in Oas in 2024 (4.7%)
Inside itSources
53
barangays
LandSources
266.70 km²
of land, 2019 masterlistLand areaThe land inside the place's official boundary. A square kilometre is a square 1 km on each side, about the size of 140 football fields.Explained by Scene: Oas's land would fill a square about 16.3 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: 243 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 2 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
16,933
households in 2024HouseholdA person living alone, or people who sleep in the same home and share their meals. A family may be one household or several.More in the glossary
3.8 people in each, on average, in 2024
Town or countrySources
1.6%
About 2 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: 0500512000^[4]Formerly 050512000
ZIP code: 4505^{[13, 14, 15]}

People

Oas had 64,890 people in the 2024 census, up 0.2% 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.

Oas had the 10th most people of the 18 cities and municipalities of Albay in 2024^[1]

7Camalig73,087
8Bacacay72,298
9Libon72,135
10Oas64,890
11Tiwi56,871
12Malinao49,570
13Pio Duran48,713

All 18 cities and municipalities of Albay

In 2024, the 10 barangays with the most people held about 36 of every 100 of its people^[2]

Balogo3,6396 in 100
Cagmanaba2,9845 in 100
Maramba2,8914 in 100
Badian2,8284 in 100
Busac2,0353 in 100
Manga1,9983 in 100
Saban1,8533 in 100
San Ramon1,7433 in 100
Bongoran1,7403 in 100
Mayao1,7173 in 100

See all 53 barangays of Oas

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

About 33 of every 100 are children under 15 (32.9%)
About 60 of every 100 are of working age, 15 to 64 (60.4%)
About 7 of every 100 are 65 or older (6.6%)

MenWomen

The figures by age

People by age group, men and women
Age	People	Men	Women
0 - 4	6,610	3,321	3,289
5 - 9	7,441	3,883	3,558
10 - 14	7,712	3,935	3,777
15 - 19	7,522	3,864	3,658
20 - 24	5,644	2,909	2,735
25 - 29	4,613	2,400	2,213
30 - 34	4,066	2,124	1,942
35 - 39	3,573	1,859	1,714
40 - 44	3,450	1,787	1,663
45 - 49	3,098	1,575	1,523
50 - 54	3,155	1,591	1,564
55 - 59	2,626	1,355	1,271
60 - 64	2,158	1,014	1,144
65 - 69	1,658	761	897
70 - 74	1,191	525	666
75 - 79	786	279	507
80 years and over	751	194	557

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: 64,890^{[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: 16,933^{[1, 2]}
People in each household, 2024: 3.8 on average^{[1, 2]}
Share of Albay, 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: 4.7%^[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: 1.6% (1,066 people)^[5]
Men and women, 2020: 33,376 men, 32,678 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	64,890^{[1, 2]}	−0.44% a year	16,933	3.8
2020as of May 1, 2020	66,084^[1]	−0.59% a year	—	—
2015as of August 1, 2015	67,960^[1]	0.91% a year	—	—
2010as of May 1, 2010	64,785^[1]	—	—	—
2007as of August 1, 2007; as it was then	63,888^[32]	0.40% a year	—	—
2000as of May 1, 2000; on today’s borders	62,063^{[32, 33]}	2.02% a year	—	—
1995as of September 1, 1995; as it was then	56,536^[32]	1.20% a year	—	—
1990as of May 1, 1990; as it was then	53,061^[32]	0.15% a year	—	—
1980as of May 1, 1980; as it was then	52,269^[32]	0.77% a year	—	—
1975as of May 1, 1975; as it was then	50,293^[32]	0.96% a year	—	—
1970as of May 6, 1970; as it was then	47,952^[32]	2.82% a year	—	—
1960as of February 15, 1960; as it was then	36,095^[32]	—	—	—

Barangays

Oas is made up of 53 barangays.

Barangays of Oas. Each column heading sorts the table.
	^{[2, 3, 5, 6, 7]}	Share (2024)			Urban or rural
Balogo	3,639	5.61%	−1.60% a year	about 17.73 km²	Rural
Cagmanaba	2,984	4.6%	−0.47% a year	about 13.16 km²	Rural
Maramba	2,891	4.46%	−0.36% a year	about 8.30 km²	Rural
Badian	2,828	4.36%	−0.65% a year	about 5.64 km²	Rural
Busac	2,035	3.14%	−0.74% a year	about 3.09 km²	Rural
Manga	1,998	3.08%	−0.94% a year	about 2.00 km²	Rural
Saban	1,853	2.86%	−1.02% a year	about 2.67 km²	Rural
San Ramon	1,743	2.69%	−1.29% a year	about 1.74 km²	Rural
Bongoran	1,740	2.68%	−1.03% a year	about 1.40 km²	Rural
Mayao	1,717	2.65%	0.92% a year	about 2.45 km²	Rural
San Juan	1,657	2.55%	1.18% a year	about 2.17 km²	Rural
Tobgon	1,655	2.55%	1.73% a year	about 10.86 km²	Rural
Iraya Norte	1,637	2.52%	−0.55% a year	about 0.377 km²	Rural
Nagas	1,620	2.5%	−0.19% a year	about 9.07 km²	Rural
Ilaor Sur	1,599	2.46%	−2.51% a year	about 0.536 km²	Rural
San Isidro	1,532	2.36%	0.22% a year	about 3.03 km²	Rural
Tapel	1,518	2.34%	−2.60% a year	about 7.39 km²	Rural
Obaliw-Rinas	1,484	2.29%	−0.06% a year	about 0.545 km²	Rural
Ilaor Norte	1,455	2.24%	−0.33% a year	about 0.761 km²	Rural
Camagong	1,424	2.19%	0.48% a year	about 3.98 km²	Rural
San Agustin	1,336	2.06%	2.88% a year	about 1.75 km²	Rural
Tobog	1,280	1.97%	−0.28% a year	about 0.855 km²	Rural
Pistola	1,237	1.91%	−0.42% a year	about 2.12 km²	Rural
Maporong	1,178	1.82%	−0.90% a year	about 1.33 km²	Rural
Talongog	1,161	1.79%	−0.47% a year	about 0.757 km²	Rural
Bagumbayan	1,084	1.67%	2.96% a year	about 1.13 km²	Rural
San Antonio	1,031	1.59%	0.49% a year	about 32.05 km²	Rural
Calpi	1,019	1.57%	−4.76% a year	about 2.94 km²	Rural
Gumabao	910	1.4%	−0.24% a year	about 2.73 km²	Rural
Tablon	895	1.38%	1.80% a year	about 6.61 km²	Rural
Calzada	886	1.37%	−0.64% a year	about 0.598 km²	Urban
Rizal	872	1.34%	−0.83% a year	about 0.146 km²	Rural
Bagsa	867	1.34%	−0.22% a year	about 1.95 km²	Rural
Coliat	832	1.28%	0.14% a year	about 1.87 km²	Rural
San Vicente	801	1.23%	−1.02% a year	about 2.08 km²	Rural
Calaguimit	797	1.23%	−2.77% a year	about 8.27 km²	Rural
Bangiawon	776	1.2%	−2.54% a year	about 3.78 km²	Rural
Ramay	755	1.16%	1.35% a year	about 4.09 km²	Rural
San Pascual	742	1.14%	−1.40% a year	about 3.06 km²	Rural
San Miguel	735	1.13%	−0.10% a year	about 2.07 km²	Rural
Del Rosario	727	1.12%	1.37% a year	about 3.32 km²	Rural
Talisay	715	1.1%	−0.82% a year	about 2.35 km²	Rural
San Jose	658	1.01%	−2.71% a year	about 3.95 km²	Rural
Casinagan	592	0.91%	−0.40% a year	about 4.63 km²	Rural
Iraya Sur	580	0.89%	−0.81% a year	about 0.0758 km²	Rural
Matambo	577	0.89%	4.31% a year	about 1.71 km²	Rural
Badbad	554	0.85%	−0.97% a year	about 3.98 km²	Rural
Banao	520	0.8%	1.53% a year	about 3.15 km²	Rural
Bogtong	410	0.63%	−1.68% a year	about 9.98 km²	Rural
Mayag	406	0.63%	−2.49% a year	about 4.36 km²	Rural

The 50 with the most people, of 53. See all 53 barangays of Oas

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

Oas covers 266.70 km² of land, 243 people for every km² in 2024. Its land rises to 1,062 m above the sea and it has 17.8 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: 266.70 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: 243 people per km²^[6]
Coordinates: 13.10599° N, 123.33426° 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: 162 m
Highest: 1,062 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

17.8 km of coastline^[29]

Rivers^[29]

Talisay River17.6 of 31.0 km
Cabilogan River7.3 of 29.4 km
Pangarian River6.7 of 23.2 km

Peaks^[29]

Masaragavolcano1,328 m
Mount Caburauanheight not mapped
Mount Pantaoheight not mapped

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

Climate

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

Type III^[30]

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

Covers about 81 of every 100 parts of its land. Read by Scene off PAGASA's climate map, so approximate: the type that covers most of the place's land.

At Legaspi City, the nearest PAGASA station, 43 km away^[31]Averages for 1991 to 2020: 3,593 mm of rain on 195 days a year; 27.7 °C on average

Rain each month Average temperature

The figures by month

Climate at Legaspi City, 1991 to 2020, by month
Month	Rain	Rainy days	Average	High	Low
January	347 mm	18	26.1 °C	28.9 °C	23.3 °C
February	251 mm	13	26.3 °C	29.4 °C	23.3 °C
March	232 mm	14	27.0 °C	30.2 °C	23.9 °C
April	152 mm	12	28.2 °C	31.7 °C	24.8 °C
May	198 mm	13	29.0 °C	32.5 °C	25.6 °C
June	216 mm	14	28.8 °C	32.3 °C	25.3 °C
July	281 mm	18	28.2 °C	31.5 °C	24.9 °C
August	223 mm	16	28.3 °C	31.5 °C	25.0 °C
September	280 mm	17	28.1 °C	31.5 °C	24.8 °C
October	322 mm	18	27.8 °C	31.1 °C	24.4 °C
November	450 mm	20	27.4 °C	30.4 °C	24.4 °C
December	642 mm	22	26.7 °C	29.4 °C	24.0 °C
The year	3,593 mm	195	27.7 °C	30.9 °C	24.5 °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 15 m above the sea.

Life & Economy

About 31 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: 31.4% 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 31 of every 100 people in Oas lived below the poverty line in 2021 (31.4%)^[18]

The PSA's model for every town puts it between 28.3% and 34.5%, with 90% confidence.

Public places

5government offices
1hospital or health centre
53schools
6places of worship
1market
1park
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.

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

Government & Leaders

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

Legislative districtLegislative districtThe area that elects one member of the House of Representatives. A big province or city may have several.More in the glossary: 3rd district of Albay^{[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
John Kenneth Martinez Trinidad^[19]
Vice mayor
Domingo Red Escoto Jr.^[19]
2022–2025
Mayor
Domingo Red Escoto Jr.^[20]
Vice mayor
Hector Raquid Loyola^[20]
2019–2022
Mayor
Domingo Red Escoto Jr.^[21]
Vice mayor
Reene Riofrio Raro^[21]
2016–2019
Mayor
Domingo Red Escoto Jr.^[22]
Vice mayor
Antonio Beron Yuchongco II^[22]
2013–2016
Mayor
Gregorio Horca Ricarte^[23]
Vice mayor
Efren Rito Baltazar^[23]
2010–2013
Mayor
Gregorio Horca Ricarte^[24]
Vice mayor
Efren Rito Baltazar^[24]
2007–2010
Mayor
Gregorio Horca Ricarte^[25]
Vice mayor
Efren Rito Baltazar^[25]
2004–2007
Mayor
Jesus Reario II^[26]
Vice mayor
Edgardo Flordeliza^[26]
2001–2004
Mayor
Jesus R. Reario II^[27]
Vice mayor
Everth R. Vicera^[27]

Mayors and vice mayors of Oas, by term
Term	Mayor	Vice mayor
2025–2028In office as of February 2026	John Kenneth Martinez Trinidad^[19]	Domingo Red Escoto Jr.^[19]
2022–2025	Domingo Red Escoto Jr.^[20]	Hector Raquid Loyola^[20]
2019–2022	Domingo Red Escoto Jr.^[21]	Reene Riofrio Raro^[21]
2016–2019	Domingo Red Escoto Jr.^[22]	Antonio Beron Yuchongco II^[22]
2013–2016	Gregorio Horca Ricarte^[23]	Efren Rito Baltazar^[23]
2010–2013	Gregorio Horca Ricarte^[24]	Efren Rito Baltazar^[24]
2007–2010	Gregorio Horca Ricarte^[25]	Efren Rito Baltazar^[25]
2004–2007	Jesus Reario II^[26]	Edgardo Flordeliza^[26]
2001–2004	Jesus R. Reario II^[27]	Everth R. Vicera^[27]

History & Identity

Stories from Bicol Region

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

Film, 0:56
Bicol Region
Bicol Region: the day Mayon moved a town
Tradition says Bicol is named for a bending river. On 1 February 1814 Mayon buried Cagsawa; the town moved to Daraga, and in 1914 the Bicol Region made a pilgrimage to the ruins.
Why It's Called That

All Stories

Its story

The marker records that a bigger church and convent of volcanic rock and brick was built in 1825, that fire damaged both in 1866, and that the convent was destroyed by a typhoon on 25 December 1947.^[9]

Oas was already a municipality of Albay in 1907, placed in the third assembly district by the Election Law.^[10]

Timeline

1605
Franciscan missionaries founded the church of Oas, with Fray Marcos de Lisboa as first curate, per the NHCP marker.^[9]
1825
A bigger church and convent of volcanic rock and brick was built at Oas.^[9]
9 January 1907
Oas is named as a municipality of Albay in the Election Law's list of assembly districts.^[10]
25 December 1947
Typhoon of 25 December 1947 totally destroyed the Oas convent and damaged the church roofing.^[9]

Nearby

Oas shares a border with Ligao City, Tabaco City, Libon and Polangui.

How it compares

Oas beside Albay, and where it stands among the cities and municipalities of Albay.

Oas beside Albay
Figure	Oas	Albay	Rank among the cities and municipalities of Albay
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	64,890^{[1, 2]}	1,379,398	10th of 18
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	−0.44% a year^{[1, 2]}slower	0.08% a year	17th of 18
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	243^[6]less crowded	549	16th of 18
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	266.70 km²^[6]	2,514.74 km²	1st of 18
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	3.8^{[1, 2]}lower	4.1	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	1.6%^[5]lower	31.3%	not ranked

Shares a border with^[3]

How far, in a straight line^[3]

Legazpi City, the capital of Albay: 47.3 km east
Manila: 302.0 km northwest

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

The nearest towns and cities^[3]

Pio DuranAlbay15.7 km east
LibonAlbay15.8 km north
Ligao CityAlbay19.2 km northeast
BatoCamarines Sur23.4 km north
GuinobatanAlbay26.3 km east
ClaveriaMasbate28.1 km southwest

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: Bicol Region (OpenSTAT table 0051A6DTPH4). 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.National Historical Commission of the Philippines. Church of Oas (historical marker). Published 1950. Read by Scene October 3, 2026. Philippine government work, no copyright (Republic Act No. 8293, Section 176.1). Open the source
10.Philippine Commission. Act No. 1582 (Election Law), January 9, 1907. Published January 9, 1907. Read by Scene October 2, 2026. Philippine government work, no copyright (Republic Act No. 8293, Section 176.1). Open the source
11.Congress of the Philippines. Republic Act No. 7160: the Local Government Code of 1991. Published October 10, 1991. Read by Scene October 2, 2026. Philippine government work, no copyright (Republic Act No. 8293, Section 176.1). Open the source
12.1986 Constitutional Commission. The 1987 Constitution of the Republic of the Philippines. Published February 2, 1987. Read by Scene October 2, 2026. Philippine government work, no copyright (Republic Act No. 8293, Section 176.1). Open the source
13.Philippine Postal Corporation (PHLPost). ZIP Code Locator. Read by Scene October 2, 2026. Philippine government work, no copyright (Republic Act No. 8293, Section 176.1; a government-owned corporation's work is the Government's, Section 171.9). Open the source
14.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.

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. “Oas, Albay.” Scene Atlas. Updated October 9, 2026. https://scene.ph/atlas/albay/oas

People

Every figure, census by census

Barangays

Land & Environment

Water, coast and peaks

Climate

Life & Economy

Public places

Government offices2

Hospitals and health centres1

Markets1

Parks1

Monuments and memorials1