Oas
Province of Albay

Summary data
Island groupLuzon
RegionBicol Region (Region V)
ProvinceAlbay
Barangay count53
Postal code4504
Coastal/Landlockedcoastal
Marine waterbodiesBurias Pass
Area (2007)263.61 km2
(101.78 sq. mi)
Population (2015)67,960
Density (2015)258 per km2
(668 per sq. mi)
Coordinates13° 15' North, 123° 30' East
(13.2575 ° N, 123.5002 ° E)
Estimated elevation
above sea level
34.8 meters
(114.1 feet)
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Oas is a coastal municipality in the province of Albay.

The municipality has a land area of 263.61 square kilometers or 101.78 square miles which constitutes 10.23% of Albay's total area. The 2015 Census records its population as 67,960 representing 5.17% of the total population of Albay province, or 1.17% of the overall population of the Bicol Region. Based on such figures, the population density is computed at 258 inhabitants per square kilometer or 668 inhabitants per square mile.

Demographic profile of barangays

Oas has 53 barangays as shown in the following table.

BarangayPopulation
percentage

(2015)
Population
(2015)
Population
(2010)
Change
(2010-2015)

Annual
Population
Growth Rate
(2010-2015)
Badbad0.89%6025833.26%0.61%
Badian3.94%2,6812,34814.18%2.56%
Bagsa1.27%86276412.83%2.32%
Bagumbayan1.29%8791,018-13.65%-2.76%
Balogo6.23%4,2363,8978.70%1.60%
Banao0.69%470562-16.37%-3.35%
Bangiawon1.34%91078515.92%2.85%
Bogtong0.54%3673514.56%0.85%
Bongoran2.67%1,8161,7414.31%0.81%
Busac3.06%2,0791,9397.22%1.34%
Cadawag0.71%48542713.58%2.45%
Cagmanaba4.86%3,3053,0398.75%1.61%
Calaguimit1.28%8678650.23%0.04%
Calpi1.96%1,3351,2249.07%1.67%
Calzada1.34%9111,029-11.47%-2.29%
Camagong1.72%1,1671,1461.83%0.35%
Casinagan0.91%61753016.42%2.94%
Centro Poblacion0.33%225277-18.77%-3.88%
Coliat1.06%7237170.84%0.16%
Del Rosario1.08%73362417.47%3.11%
Gumabao1.17%793865-8.32%-1.64%
Ilaor Norte2.20%1,4951,525-1.97%-0.38%
Ilaor Sur3.24%2,2022,275-3.21%-0.62%
Iraya Norte2.92%1,9821,9093.82%0.72%
Iraya Sur1.14%7747118.86%1.63%
Manga3.42%2,3222,1468.20%1.51%
Maporong1.74%1,1841,1076.96%1.29%
Maramba4.86%3,3013,1146.01%1.12%
Matambo0.72%48943512.41%2.25%
Mayag0.67%452507-10.85%-2.16%
Mayao2.38%1,6181,5146.87%1.27%
Moroponros0.53%35728326.15%4.52%
Nagas2.40%1,6311,665-2.04%-0.39%
Obaliw‑Rinas2.21%1,5041,4017.35%1.36%
Pistola1.67%1,1351,1013.09%0.58%
Ramay1.08%7347241.38%0.26%
Rizal1.27%864892-3.14%-0.61%
Saban2.81%1,9081,8751.76%0.33%
San Agustin1.89%1,2851,2403.63%0.68%
San Antonio1.38%9399380.11%0.02%
San Isidro2.25%1,5291,4009.21%1.69%
San Jose1.09%744759-1.98%-0.38%
San Juan2.21%1,5031,3908.13%1.50%
San Miguel1.14%772792-2.53%-0.49%
San Pascual1.24%84174313.19%2.39%
San Ramon2.52%1,7101,6573.20%0.60%
San Vicente1.38%9381,046-10.33%-2.05%
Tablon1.38%9409034.10%0.77%
Talisay1.15%77969312.41%2.25%
Talongog1.75%1,1921,1444.20%0.79%
Tapel2.67%1,8131,37132.24%5.46%
Tobgon2.42%1,6481,5178.64%1.59%
Tobog1.93%1,3121,2772.74%0.52%
Oas Total67,96064,7854.90%0.92%
Historical population

The population of Oas grew from 36,095 in 1960 to 67,960 in 2015, an increase of 31,865 people. Growth rate over this period, which was continuously positive, fluctuated between the range of [0.15%, 2.82%]. The latest census figures in 2015 denote a positive growth rate of 0.92%, or an increase of 3,175 people, from the previous population of 64,785 in 2010.

Census datePopulationGrowth rate
1960 Feb 1536,095
1970 May 647,9522.82%
1975 May 150,2930.96%
1980 May 152,2690.77%
1990 May 153,0610.15%
1995 Sep 156,5361.20%
2000 May 162,0632.02%
2007 Aug 163,8880.40%
2010 May 164,7850.51%
2015 Aug 167,9600.92%
Map

The town center of Oas is situated at approximately 13° 15' North, 123° 30' East, which has an elevation estimated at 34.8 meters or 114.1 feet above mean sea level.


Distances

Based on the great-circle distance (the shortest distance between two points over the surface of the Earth), the cities closest to Oas are Ligao, Iriga, Tabaco, Legazpi, Naga, and Sorsogon City. The nearest municipalities are Polangui, Libon, Guinobatan, Bato, Camalig, and Buhi. Its distance from the national capital is 309.73 kilometers (192.46 miles). The following list delineates such distance measurements.

Nearest towns

Nearest cities

  • Ligao, Albay, 4.41 kilometers (2.74 miles) to the East‑Southeast (S66°E)
  • Iriga, Camarines Sur, 20.53 kilometers (12.76 miles) to the North‑Northwest (N27°W)
  • Tabaco, Albay, 27.30 kilometers (16.97 miles) to the East‑Northeast (N66°E)
  • Legazpi, Albay, 28.57 kilometers (17.75 miles) to the East‑Southeast (S63°E)
  • Naga, Camarines Sur, 53.00 kilometers (32.93 miles) to the Northwest (N40°W)
  • Sorsogon City, Sorsogon, 63.29 kilometers (39.33 miles) to the East‑Southeast (S60°E)

Distance from Manila: 309.73 kilometers (192.46 miles) to the West‑Northwest (N61°W)

Notes

  1. Unless otherwise specified, population count (excluding percentages) and land area figures are derived from the Philippine Statistics Authority.
  2. Postal codes are from the Philippine Postal Corporation.
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