Gasan, Province of Marinduque

Summary data
Typemunicipality
Island groupLuzon
RegionMIMAROPA Region
ProvinceMarinduque
Barangay count25
Postal code4905
Coastal/Landlockedcoastal
Marine waterbodiesSibuyan Sea
Philippine major island(s)Marinduque
Area (2013)100.88 km2 (38.95 sq mi)
Population (2020)36,197
Density (2020)359 / km2 (929 / sq mi)
Coordinates13° 19' North, 121° 51' East (13.3233, 121.8459)
Estimated elevation above sea level9.2 meters (30.1 feet)

Gasan is a coastal municipality in the island province of Marinduque.

The municipality has a land area of 100.88 square kilometers or 38.95 square miles which constitutes 10.59% of Marinduque's total area. Its population as determined by the 2020 Census was 36,197. This represented 15.13% of the total population of Marinduque province, or 1.12% of the overall population of the MIMAROPA Region. Based on these figures, the population density is computed at 359 inhabitants per square kilometer or 929 inhabitants per square mile.

Barangays

Gasan has 25 barangays as shown in the following table.

Demographic profile of barangays
Local government units of Gasan
BarangayPopulation percentage (2020)Population (2020)Population (2015)Change (2015‑2020)Annual Population Growth Rate (2015‑2020)
Antipolo4.20%1,5191,560-2.63%-0.56%
Bachao Ibaba3.00%1,0871,0275.84%1.20%
Bachao Ilaya2.64%9541,036-7.92%-1.72%
Bacongbacong3.09%1,1191,0229.49%1.93%
Bahi5.54%2,0051,9532.66%0.55%
Bangbang4.30%1,5581,602-2.75%-0.58%
Banot2.22%804909-11.55%-2.55%
Banuyo4.42%1,5991,5642.24%0.47%
Barangay I1.90%686816-15.93%-3.59%
Barangay II0.90%327373-12.33%-2.73%
Barangay III1.56%565603-6.30%-1.36%
Bognuyan2.75%9969771.94%0.41%
Cabugao2.36%8538144.79%0.99%
Dawis5.89%2,1331,9996.70%1.38%
Dili5.28%1,9111,8214.94%1.02%
Libtangin4.63%1,6761,45115.51%3.08%
Mahunig3.20%1,1581,03811.56%2.33%
Mangiliol1.47%531532-0.19%-0.04%
Masiga7.60%2,7502,777-0.97%-0.21%
Matandang Gasan5.06%1,8301,58115.75%3.13%
Pangi4.85%1,7571,7550.11%0.02%
Pingan6.66%2,4112,05917.10%3.38%
Tabionan3.71%1,3421,2229.82%1.99%
Tapuyan3.89%1,4091,3712.77%0.58%
Tiguion8.89%3,2172,9668.46%1.72%
Gasan Total36,19734,8283.93%0.82%

Economy

The annual regular revenue of Gasan for the fiscal year of 2016 was 95,365,916.35.

details
Annual regular income of Gasan (2009‑2016)
Fiscal YearAnnual Regular IncomeChange
200952,888,948.74
201056,374,464.916.59%
201163,222,061.6512.15%
201263,400,597.780.28%
201368,235,604.837.63%
201475,067,295.6610.01%
201585,761,449.6914.25%
201695,365,916.3511.20%

End notes:

  • Annual Regular Income = Locally Sourced Revenue + Internal Revenue Allotment (IRA) Current Year + Other Shares from National Tax Collection
  • Locally Sourced Revenue = Real Property Tax (General Fund) + Tax on Business + Other Taxes + Regulatory Fees + Service/User Charges + Receipts from Economic Enterprises

Demographics

Households

The household population of Gasan in the 2015 Census was 34,801 broken down into 8,070 households or an average of 4.31 members per household.

details
Number of households in Gasan (1990‑2015)
Census dateHousehold populationNumber of householdsAverage household size
25,2364,9265.12
26,9405,6194.79
30,2326,0225.02
33,7727,4284.55
33,4027,4444.49
34,8018,0704.31

Population by age group

According to the 2015 Census, the age group with the highest population in Gasan is 10 to 14, with 4,253 individuals. Conversely, the age group with the lowest population is 80 and over, with 355 individuals.

details
Population of Gasan by age group (2015 census)
Age groupPopulation (2015)Age group percentage
Under 16461.85%
1 to 43,1709.10%
5 to 94,24412.19%
10 to 144,25312.21%
15 to 193,56910.25%
20 to 242,4527.04%
25 to 292,0986.02%
30 to 342,0926.01%
35 to 392,0265.82%
40 to 441,9085.48%
45 to 491,8725.37%
50 to 541,6454.72%
55 to 591,4834.26%
60 to 641,1463.29%
65 to 698862.54%
70 to 745701.64%
75 to 794131.19%
80 and over3551.02%
Total34,828100.00%
  • Youth Dependency Ratio: 60.68
  • Old Age Dependency Ratio: 10.96
  • Total Dependency Ratio: 71.64
  • Median Age: 23.12

Historical population

The population of Gasan grew from 8,270 in 1903 to 36,197 in 2020, an increase of 27,927 people over the course of 117 years. The latest census figures in 2020 denote a positive growth rate of 0.81%, or an increase of 1,369 people, from the previous population of 34,828 in 2015.

details
Population of Gasan (1903‑2020)
Census datePopulationGrowth rate
8,270
10,7711.68%
10,7940.01%
10,052-0.73%
14,5083.28%
19,8273.10%
20,5960.77%
23,1852.40%
25,2360.85%
26,9441.23%
30,2322.50%
33,7721.54%
33,402-0.40%
34,8280.80%
36,1970.81%

The total number of registered voters or electorate in Gasan for the year 2019 was 22,856, broken down into 11,114 males and 11,742 females.

Location

The municipal center of Gasan is situated at approximately 13° 19' North, 121° 51' East, in the island of Marinduque. Elevation at these coordinates is estimated at 9.2 meters or 30.1 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 Gasan are Lucena, Calapan, Oriental Mindoro, Tayabas, Quezon, Batangas City, Batangas, San Pablo, Laguna, and Lipa, Batangas. The nearest municipalities are Buenavista, Marinduque, Boac, Marinduque, Mogpog, Marinduque, Santa Cruz, Marinduque, Torrijos, Marinduque, and Concepcion, Romblon. Its distance from the national capital is 168.59 kilometers (104.76 miles). The following list delineates such distance measurements.

great-circle distance

Nearest towns

Nearest cities

Distance from Manila: 168.59 kilometers (104.76 miles) to the North‑Northwest (N33°W)

Notes

  1. Unless otherwise specified, population count (excluding percentages), household data, and land area figures are derived from the Philippine Statistics Authority.
  2. Data on registered voters is from the Commission on Elections.
  3. Data on annual regular income is from the Bureau of Local Government Finance, Department of Finance
  4. Postal code information is from the Philippine Postal Corporation.
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