San Agustin, Province of Isabela
| Type | municipality |
|---|---|
| Island group | Luzon |
| Region | Cagayan Valley (Region II) |
| Province | Isabela |
| Barangay count | 23 |
| Postal code | 3314 |
| Coastal/Landlocked | landlocked |
| Marine waterbodies | none (landlocked) |
| Philippine major island(s) | Luzon |
| Area (2013) | 278.40 km2 (107.49 sq mi) |
| Population (2020) | 22,096 |
| Density (2020) | 79 / km2 (206 / sq mi) |
| Coordinates | 16° 30' North, 121° 45' East (16.5067, 121.7474) |
| Estimated elevation above sea level | 110.0 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 2.12% of Isabela's total area. Its population as determined by the 2020 Census was 22,096. This represented 1.30% of the total population of Isabela province, or 0.60% of the overall population of the Cagayan Valley region. Based on these figures, the population density is computed at 79 inhabitants per square kilometer or 206 inhabitants per square mile.
Barangays
San Agustin has 23 barangays as shown in the following table.
Demographic profile of barangays
| Barangay | Population percentage (2020) | Population (2020) | Population (2015) | Change (2015‑2020) | Annual Population Growth Rate (2015‑2020) |
|---|---|---|---|---|---|
| Bautista | 5.74% | 1,269 | 1,226 | 3.51% | 0.73% |
| Calaocan | 2.27% | 501 | 525 | -4.57% | -0.98% |
| Dabubu Grande | 6.22% | 1,375 | 1,396 | -1.50% | -0.32% |
| Dabubu Pequeño | 2.57% | 568 | 554 | 2.53% | 0.53% |
| Dappig | 2.39% | 527 | 555 | -5.05% | -1.08% |
| Laoag | 4.57% | 1,010 | 1,100 | -8.18% | -1.78% |
| Mapalad | 7.76% | 1,714 | 1,670 | 2.63% | 0.55% |
| Masaya Centro | 6.88% | 1,521 | 1,585 | -4.04% | -0.86% |
| Masaya Norte | 4.84% | 1,069 | 1,211 | -11.73% | -2.59% |
| Masaya Sur | 11.23% | 2,481 | 2,499 | -0.72% | -0.15% |
| Nemmatan | 3.00% | 663 | 616 | 7.63% | 1.56% |
| Palacian | 6.03% | 1,332 | 1,391 | -4.24% | -0.91% |
| Panang | 3.41% | 754 | 875 | -13.83% | -3.08% |
| Quimalabasa Norte | 3.13% | 691 | 654 | 5.66% | 1.17% |
| Quimalabasa Sur | 1.77% | 392 | 509 | -22.99% | -5.35% |
| Rang-ay | 1.74% | 385 | 413 | -6.78% | -1.47% |
| Salay | 4.91% | 1,084 | 1,189 | -8.83% | -1.93% |
| San Antonio | 2.26% | 499 | 594 | -15.99% | -3.60% |
| Santo Niño | 7.38% | 1,631 | 1,480 | 10.20% | 2.07% |
| Santos | 2.38% | 525 | 555 | -5.41% | -1.16% |
| Sinaoangan Norte | 2.59% | 573 | 613 | -6.53% | -1.41% |
| Sinaoangan Sur | 2.48% | 547 | 609 | -10.18% | -2.23% |
| Virgoneza | 4.46% | 985 | 1,061 | -7.16% | -1.55% |
| San Agustin Total | 22,096 | 22,880 | -3.43% | -0.73% | |
Economy
The annual regular revenue of San Agustin for the fiscal year of 2016 was ₱91,980,026.07.
details
| Fiscal Year | Annual Regular Income | Change |
|---|---|---|
| 2009 | 52,200,031.17 | – |
| 2010 | 57,702,433.91 | 10.54% |
| 2011 | 59,324,996.62 | 2.81% |
| 2012 | 58,781,620.15 | -0.92% |
| 2013 | 64,607,041.55 | 9.91% |
| 2014 | 72,815,840.80 | 12.71% |
| 2015 | 82,648,885.92 | 13.50% |
| 2016 | 91,980,026.07 | 11.29% |
End notes:
| ||
Demographics
Households
The household population of San Agustin in the 2015 Census was 22,860 broken down into 5,626 households or an average of 4.06 members per household.
details
| Census date | Household population | Number of households | Average household size |
|---|---|---|---|
| 16,577 | 3,247 | 5.11 | |
| 17,721 | 3,902 | 4.54 | |
| 19,801 | 4,035 | 4.91 | |
| 20,681 | 4,533 | 4.56 | |
| 21,797 | 5,106 | 4.27 | |
| 22,860 | 5,626 | 4.06 |
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 group | Population (2015) | Age group percentage |
|---|---|---|
| Under 1 | 356 | 1.56% |
| 1 to 4 | 1,551 | 6.78% |
| 5 to 9 | 2,020 | 8.83% |
| 10 to 14 | 2,082 | 9.10% |
| 15 to 19 | 2,064 | 9.02% |
| 20 to 24 | 2,127 | 9.30% |
| 25 to 29 | 1,861 | 8.13% |
| 30 to 34 | 1,523 | 6.66% |
| 35 to 39 | 1,518 | 6.63% |
| 40 to 44 | 1,535 | 6.71% |
| 45 to 49 | 1,462 | 6.39% |
| 50 to 54 | 1,286 | 5.62% |
| 55 to 59 | 1,020 | 4.46% |
| 60 to 64 | 854 | 3.73% |
| 65 to 69 | 554 | 2.42% |
| 70 to 74 | 391 | 1.71% |
| 75 to 79 | 311 | 1.36% |
| 80 and over | 365 | 1.60% |
| Total | 22,880 | 100.00% |
| ||
Historical population
The population of San Agustin grew from 10,136 in 1960 to 22,096 in 2020, an increase of 11,960 people over the course of 60 years. The latest census figures in 2020 denote a negative growth rate of 0.73%, or a decrease of 784 people, from the previous population of 22,880 in 2015.
details
| Census date | Population | Growth rate |
|---|---|---|
| – | – | |
| – | – | |
| – | – | |
| – | – | |
| 10,136 | – | |
| 13,294 | 2.69% | |
| 14,862 | 2.26% | |
| 14,880 | 0.02% | |
| 16,577 | 1.09% | |
| 17,861 | 1.41% | |
| 19,927 | 2.37% | |
| 20,681 | 0.51% | |
| 21,797 | 1.93% | |
| 22,880 | 0.93% | |
| 22,096 | -0.73% |
The total number of registered voters or electorate in San Agustin for the year 2019 was 15,161, broken down into 7,769 males and 7,392 females.
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, Isabela, Cauayan, Isabela, Ilagan, Isabela, Tabuk, Kalinga, San Jose, Nueva Ecija, and Tuguegarao, Cagayan. The nearest municipalities are Jones, Isabela, Aglipay, Quirino, Maddela, Quirino, Saguday, Quirino, Echague, Isabela, and San Guillermo, Isabela. 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
- Jones, Isabela, 7.47 kilometers (4.64 miles) to the Northwest (N39°W)
- Aglipay, Quirino, 17.21 kilometers (10.69 miles) to the West (S84°W)
- Maddela, Quirino, 19.72 kilometers (12.25 miles) to the South‑Southwest (S20°W)
- Saguday, Quirino, 20.06 kilometers (12.46 miles) to the West (N79°W)
- Echague, Isabela, 23.45 kilometers (14.57 miles) to the North‑Northwest (N17°W)
- San Guillermo, Isabela, 24.47 kilometers (15.21 miles) to the North‑Northeast (N15°E)
Nearest cities
- Santiago, Isabela, 29.39 kilometers (18.26 miles) to the Northwest (N47°W)
- Cauayan, Isabela, 47.37 kilometers (29.43 miles) to the North (N2°E)
- Ilagan, Isabela, 72.14 kilometers (44.83 miles) to the North‑Northeast (N12°E)
- Tabuk, Kalinga, 111.00 kilometers (68.97 miles) to the North‑Northwest (N15°W)
- San Jose, Nueva Ecija, 113.24 kilometers (70.37 miles) to the Southwest (S46°W)
- Tuguegarao, Cagayan, 122.39 kilometers (76.05 miles) to the North (N1°W)
Distance from Manila: 227.45 kilometers (141.33 miles) to the South‑Southwest (S21°W)
Notes
- Unless otherwise specified, population count (excluding percentages), household data, and land area figures are derived from the Philippine Statistics Authority.
- Data on registered voters is from the Commission on Elections.
- Data on annual regular income is from the Bureau of Local Government Finance, Department of Finance
- Postal code information is from the Philippine Postal Corporation.