San Agustin, Province of Isabela

Summary data
Typemunicipality
Island groupLuzon
RegionCagayan Valley (Region II)
ProvinceIsabela
Barangay count23
Postal code3314
Coastal/Landlockedlandlocked
Marine waterbodiesnone (landlocked)
Philippine major island(s)Luzon
Area (2007)278.40 km2 (107.49 sq mi)
Population (2015)22,880
Density (2015)82 / km2 (213 / sq mi)
Coordinates16° 30' North, 121° 45' East (16.5067, 121.7474)
Estimated elevation above sea level110.0 meters (360.9 feet)

San Agustin is a landlocked municipality in the coastal province of Isabela.

The municipality has a land area of 278.40 square kilometers or 107.49 square miles which constitutes 2.24% of Isabela's total area. Its population as determined by the 2015 Census was 22,880. This represented 1.44% of the total population of Isabela province, or 0.66% of the overall population of the Cagayan Valley region. Based on these figures, the population density is computed at 82 inhabitants per square kilometer or 213 inhabitants per square mile.

Barangays

San Agustin has 23 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)
Bautista5.36%1,2261,1704.79%0.89%
Calaocan2.29%52542224.41%4.25%
Dabubu Grande6.10%1,3961,3483.56%0.67%
Dabubu Pequeño2.42%554584-5.14%-1.00%
Dappig2.43%55545322.52%3.94%
Laoag4.81%1,1001,0970.27%0.05%
Mapalad7.30%1,6701,48112.76%2.31%
Masaya Centro6.93%1,5851,37515.27%2.74%
Masaya Norte5.29%1,2111,298-6.70%-1.31%
Masaya Sur10.92%2,4992,4123.61%0.68%
Nemmatan2.69%616631-2.38%-0.46%
Palacian6.08%1,3911,3711.46%0.28%
Panang3.82%87574717.14%3.06%
Quimalabasa Norte2.86%654703-6.97%-1.37%
Quimalabasa Sur2.22%50945212.61%2.29%
Rang‑ay1.81%4133837.83%1.45%
Salay5.20%1,1891,1047.70%1.42%
San Antonio2.60%59446926.65%4.60%
Santo Niño6.47%1,4801,4422.64%0.50%
Santos2.43%555825-32.73%-7.27%
Sinaoangan Norte2.68%6135668.30%1.53%
Sinaoangan Sur2.66%60952516.00%2.87%
Virgoneza4.64%1,06193912.99%2.35%
San Agustin Total22,88021,7974.97%0.93%

Economy

According to the Bureau of Local Government Finance, the annual regular revenue of San Agustin for the fiscal year of 2016 was 91,980,026.07.

details
Fiscal YearAnnual Regular IncomeChange
200952,200,031.17
201057,702,433.9110.54%
201159,324,996.622.81%
201258,781,620.15-0.92%
201364,607,041.559.91%
201472,815,840.8012.71%
201582,648,885.9213.50%
201691,980,026.0711.29%

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 San Agustin is 20 to 24, with 2,127 individuals. Conversely, the age group with the lowest population is 75 to 79, with 311 individuals.

details
Age groupPopulation (2015)
Under 1356
1 to 41,551
5 to 92,020
10 to 142,082
15 to 192,064
20 to 242,127
25 to 291,861
30 to 341,523
35 to 391,518
40 to 441,535
45 to 491,462
50 to 541,286
55 to 591,020
60 to 64854
65 to 69554
70 to 74391
75 to 79311
80 and over365
Total22,880

Historical population

The population of San Agustin grew from 10,136 in 1960 to 22,880 in 2015, an increase of 12,744 people. The latest census figures in 2015 denote a positive growth rate of 0.93%, or an increase of 1,083 people, from the previous population of 21,797 in 2010.

details
Census datePopulationGrowth rate
10,136
13,2942.69%
14,8622.26%
14,8800.02%
16,5771.09%
17,8611.41%
19,9272.37%
20,6810.51%
21,7971.93%
22,8800.93%

Location

The municipal center of San Agustin is situated at approximately 16° 30' North, 121° 45' East, in the island of Luzon. Elevation at these coordinates is estimated at 110.0 meters or 360.9 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 San Agustin are Santiago, Cauayan, Ilagan, Tabuk, San Jose, and Tuguegarao. The nearest municipalities are Jones, Aglipay, Maddela, Saguday, Echague, and Cabarroguis. Its distance from the national capital is 227.45 kilometers (141.33 miles). The following list delineates such distance measurements.

great-circle distance

Nearest towns

Nearest cities

Distance from Manila: 227.45 kilometers (141.33 miles) to the South‑Southwest (S21°W)

National rankings

  • Population (2015): 22,880, ranked 1,146 out of 1,634
  • Land area (2007): 107.49 square kilometers, ranked 353 out of 1,634
  • Population density (2015): 82 inhabitants per square kilometer, ranked 1,363 out of 1,634
  • Annual population growth rate (2010 to 2015): 0.93%, ranked 602 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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