San Isidro, Province of Isabela

Summary data
Typemunicipality
Island groupLuzon
RegionCagayan Valley (Region II)
ProvinceIsabela
Barangay count13
Postal code3310
Coastal/Landlockedlandlocked
Marine waterbodiesnone (landlocked)
Philippine major island(s)Luzon
Area (2007)71.90 km2 (27.76 sq mi)
Population (2015)24,861
Density (2015)346 / km2 (896 / sq mi)
Coordinates16° 44' North, 121° 38' East (16.7343, 121.6337)
Estimated elevation above sea level80.9 meters (265.5 feet)

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

The municipality has a land area of 71.90 square kilometers or 27.76 square miles which constitutes 0.58% of Isabela's total area. Its population as determined by the 2015 Census was 24,861. This represented 1.56% of the total population of Isabela province, or 0.72% of the overall population of the Cagayan Valley region. Based on these figures, the population density is computed at 346 inhabitants per square kilometer or 896 inhabitants per square mile.

Barangays

San Isidro has 13 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)
Camarag6.73%1,6721,5815.76%1.07%
Cebu11.07%2,7532,6135.36%1.00%
Gomez10.12%2,5172,06022.18%3.89%
Gud6.46%1,6071,5503.68%0.69%
Nagbukel7.20%1,7901,51618.07%3.21%
Patanad2.94%73266510.08%1.84%
Quezon14.07%3,4993,17910.07%1.84%
Ramos East6.29%1,5631,4716.25%1.16%
Ramos West7.61%1,8911,7209.94%1.82%
Rizal East7.84%1,9481,9111.94%0.37%
Rizal West3.91%9739097.04%1.30%
Victoria7.18%1,7851,6379.04%1.66%
Villaflor8.57%2,1311,9469.51%1.74%
San Isidro Total24,86122,7589.24%1.70%

Economy

According to the Bureau of Local Government Finance, the annual regular revenue of San Isidro for the fiscal year of 2016 was 67,811,751.71.

details
Fiscal YearAnnual Regular IncomeChange
2009
2010
201141,039,702.42
2012
201347,494,771.43
201453,974,891.0013.64%
201561,297,227.2213.57%
201667,811,751.7110.63%

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 Isidro is 5 to 9, with 2,533 individuals. Conversely, the age group with the lowest population is 75 to 79, with 191 individuals.

details
Age groupPopulation (2015)
Under 1478
1 to 42,138
5 to 92,533
10 to 142,240
15 to 192,298
20 to 242,320
25 to 292,012
30 to 341,812
35 to 391,821
40 to 441,535
45 to 491,520
50 to 541,164
55 to 591,055
60 to 64778
65 to 69491
70 to 74282
75 to 79191
80 and over193
Total24,861

Historical population

The population of San Isidro grew from 8,384 in 1970 to 24,861 in 2015, an increase of 16,477 people. The latest census figures in 2015 denote a positive growth rate of 1.70%, or an increase of 2,103 people, from the previous population of 22,758 in 2010.

details
Census datePopulationGrowth rate
8,384
9,7373.05%
11,5273.43%
14,4442.28%
16,0431.99%
18,6033.23%
21,3871.94%
22,7582.29%
24,8611.70%

Location

The municipal center of San Isidro is situated at approximately 16° 44' North, 121° 38' East, in the island of Luzon. Elevation at these coordinates is estimated at 80.9 meters or 265.5 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 Isidro are Santiago, Cauayan, Ilagan, Tabuk, Tuguegarao, and Baguio. The nearest municipalities are Echague, Alicia, Ramon, Angadanan, San Mateo, and San Guillermo. Its distance from the national capital is 247.35 kilometers (153.70 miles). The following list delineates such distance measurements.

great-circle distance

Nearest towns

Nearest cities

  • Santiago, Isabela, 10.82 kilometers (6.72 miles) to the West‑Southwest (S61°W)
  • Cauayan, Isabela, 26.28 kilometers (16.33 miles) to the North‑Northeast (N32°E)
  • Ilagan, Isabela, 52.88 kilometers (32.86 miles) to the North‑Northeast (N31°E)
  • Tabuk, Kalinga, 77.84 kilometers (48.37 miles) to the North‑Northwest (N15°W)
  • Tuguegarao, Cagayan, 97.76 kilometers (60.75 miles) to the North (N6°E)
  • Baguio, 116.62 kilometers (72.47 miles) to the West‑Southwest (S72°W)

Distance from Manila: 247.35 kilometers (153.70 miles) to the South‑Southwest (S16°W)

National rankings

  • Population (2015): 24,861, ranked 1,072 out of 1,634
  • Land area (2007): 27.76 square kilometers, ranked 1,201 out of 1,634
  • Population density (2015): 346 inhabitants per square kilometer, ranked 559 out of 1,634
  • Annual population growth rate (2010 to 2015): 1.70%, ranked 1,350 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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