Gamu, Province of Isabela

Summary data
Typemunicipality
Island groupLuzon
RegionCagayan Valley (Region II)
ProvinceIsabela
Barangay count16
Postal code3301
Coastal/Landlockedlandlocked
Marine waterbodiesnone (landlocked)
Philippine major island(s)Luzon
Area (2007)129.40 km2 (49.96 sq mi)
Population (2015)29,904
Density (2015)231 / km2 (599 / sq mi)
Coordinates17° 3' North, 121° 50' East (17.0472, 121.8333)
Estimated elevation above sea level51.9 meters (170.2 feet)

Gamu is a landlocked municipality in the coastal province of Isabela.

The municipality has a land area of 129.40 square kilometers or 49.96 square miles which constitutes 1.04% of Isabela's total area. Its population as determined by the 2015 Census was 29,904. This represented 1.88% of the total population of Isabela province, or 0.87% of the overall population of the Cagayan Valley region. Based on these figures, the population density is computed at 231 inhabitants per square kilometer or 599 inhabitants per square mile.

Barangays

Gamu has 16 barangays as shown in the following table.

Demographic profile of barangays
BarangayPopulation percentage (2015)Population (2015)Population (2010)Change (2010‑2015)Annual Population Growth Rate (2010‑2015)
Barcolan3.14%9409291.18%0.22%
Buenavista3.34%99987214.56%2.62%
Dammao2.08%6235994.01%0.75%
District I3.24%9691,033-6.20%-1.21%
District II6.63%1,9841,9243.12%0.59%
District III9.04%2,7042,6033.88%0.73%
Furao8.43%2,5222,26711.25%2.05%
Guibang9.37%2,8022,6445.98%1.11%
Lenzon3.35%1,00190011.22%2.05%
Linglingay4.50%1,3451,2378.73%1.61%
Mabini15.41%4,6084,6010.15%0.03%
Pintor4.57%1,3661,3332.48%0.47%
Rizal1.22%36627135.06%5.89%
Songsong5.06%1,5141,27119.12%3.39%
Union3.56%1,0651,069-0.37%-0.07%
Upi17.04%5,0965,104-0.16%-0.03%
Gamu Total29,90428,6574.35%0.81%

Economy

According to the Bureau of Local Government Finance, the annual regular revenue of Gamu for the fiscal year of 2016 was 92,008,460.47.

details
Fiscal YearAnnual Regular IncomeChange
200912,631,630.39
201080,258,881.14535.38%
2011
2012
201358,151,806.90
201465,982,004.5913.47%
201575,070,967.9813.77%
201692,008,460.4722.56%

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

Population by age group

According to the 2015 Census, the age group with the highest population in Gamu is 5 to 9, with 3,131 individuals. Conversely, the age group with the lowest population is 80 and over, with 261 individuals.

details
Age groupPopulation (2015)
Under 1600
1 to 42,492
5 to 93,131
10 to 142,926
15 to 192,772
20 to 242,739
25 to 292,326
30 to 342,028
35 to 392,068
40 to 441,866
45 to 491,686
50 to 541,565
55 to 591,233
60 to 64907
65 to 69629
70 to 74395
75 to 79280
80 and over261
Total29,904

Historical population

The population of Gamu grew from 18,762 in 1960 to 29,904 in 2015, an increase of 11,142 people. The latest census figures in 2015 denote a positive growth rate of 0.81%, or an increase of 1,247 people, from the previous population of 28,657 in 2010.

details
Census datePopulationGrowth rate
18,762
12,586-3.83%
13,6351.62%
16,9224.41%
19,1411.24%
22,7653.30%
25,9012.81%
27,4790.82%
28,6571.54%
29,9040.81%

Location

The municipal center of Gamu is situated at approximately 17° 3' North, 121° 50' East, in the island of Luzon. Elevation at these coordinates is estimated at 51.9 meters or 170.2 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 Gamu are Ilagan, Cauayan, Santiago, Tabuk, Tuguegarao, and Candon. The nearest municipalities are Naguilian, Reina Mercedes, Luna, Quirino, Burgos, and Benito Soliven. Its distance from the national capital is 286.80 kilometers (178.21 miles). The following list delineates such distance measurements.

great-circle distance

Nearest towns

Nearest cities

Distance from Manila: 286.80 kilometers (178.21 miles) to the South‑Southwest (S19°W)

National rankings

  • Population (2015): 29,904, ranked 914 out of 1,634
  • Land area (2007): 49.96 square kilometers, ranked 825 out of 1,634
  • Population density (2015): 231 inhabitants per square kilometer, ranked 851 out of 1,634
  • Annual population growth rate (2010 to 2015): 0.81%, ranked 1,220 out of 1,634

Notes

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