San Isidro, Province of Abra

Summary data
Typemunicipality
Island groupLuzon
RegionCordillera Administrative Region (CAR)
ProvinceAbra
Barangay count9
Postal code2809
Coastal/Landlockedlandlocked
Marine waterbodiesnone (landlocked)
Philippine major island(s)Luzon
Area (2007)48.07 km2 (18.56 sq mi)
Population (2015)4,574
Density (2015)95 / km2 (246 / sq mi)
Coordinates17° 28' North, 120° 36' East (17.4656, 120.6017)
Estimated elevation above sea level143.0 meters (469.0 feet)

San Isidro is a municipality in the landlocked province of Abra.

The municipality has a land area of 48.07 square kilometers or 18.56 square miles which constitutes 1.15% of Abra's total area. Its population as determined by the 2015 Census was 4,574. This represented 1.90% of the total population of Abra province, or 0.27% of the overall population of the Cordillera Administrative Region. Based on these figures, the population density is computed at 95 inhabitants per square kilometer or 246 inhabitants per square mile.

Barangays

San Isidro has 9 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)
Cabayogan6.65%3043011.00%0.19%
Dalimag15.02%687767-10.43%-2.08%
Langbaban7.59%3473421.46%0.28%
Manayday12.70%581601-3.33%-0.64%
Pantoc9.29%4254220.71%0.13%
Poblacion13.86%634645-1.71%-0.33%
Sabtan‑olo7.37%3373302.12%0.40%
San Marcial13.53%619769-19.51%-4.05%
Tangbao13.99%640711-9.99%-1.98%
San Isidro Total4,5744,888-6.42%-1.26%

Economy

According to the Bureau of Local Government Finance, the annual regular revenue of San Isidro for the fiscal year of 2016 was 158,455,186.02.

details
Fiscal YearAnnual Regular IncomeChange
200924,632,714.60
201059,370,070.90141.02%
201155,165,397.21-7.08%
201238,853,635.63-29.57%
201341,981,595.108.05%
201430,283,389.14-27.87%
201583,308,082.53175.09%
2016158,455,186.0290.20%

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

Population by age group

According to the 2015 Census, the age group with the highest population in San Isidro is 10 to 14, with 521 individuals. Conversely, the age group with the lowest population is 70 to 74, with 69 individuals.

details
Age groupPopulation (2015)
Under 190
1 to 4348
5 to 9503
10 to 14521
15 to 19386
20 to 24342
25 to 29325
30 to 34300
35 to 39284
40 to 44235
45 to 49262
50 to 54268
55 to 59189
60 to 64148
65 to 69120
70 to 7469
75 to 7980
80 and over104
Total4,574

Historical population

The population of San Isidro grew from 2,605 in 1960 to 4,574 in 2015, an increase of 1,969 people. The latest census figures in 2015 denote a negative growth rate of 1.26%, or a decrease of 314 people, from the previous population of 4,888 in 2010.

details
Census datePopulationGrowth rate
2,605
3,0981.71%
2,924-1.15%
3,0871.09%
3,7441.95%
3,8420.49%
4,2932.41%
4,6471.10%
4,8881.86%
4,574-1.26%

Location

The municipal center of San Isidro is situated at approximately 17° 28' North, 120° 36' East, in the island of Luzon. Elevation at these coordinates is estimated at 143.0 meters or 469.0 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 Vigan, Candon, Batac, Laoag, Tabuk, and San Fernando. The nearest municipalities are Villaviciosa, Pilar, Nagbukel, Pidigan, Manabo, and Peñarrubia. Its distance from the national capital is 320.71 kilometers (199.28 miles). The following list delineates such distance measurements.

great-circle distance

Nearest towns

  • Villaviciosa, Abra, 3.96 kilometers (2.46 miles) to the Southeast (S39°E)
  • Pilar, Abra, 5.44 kilometers (3.38 miles) to the South (S7°W)
  • Nagbukel, Ilocos Sur, 8.31 kilometers (5.16 miles) to the West‑Southwest (S75°W)
  • Pidigan, Abra, 11.66 kilometers (7.25 miles) to the North (N6°W)
  • Manabo, Abra, 11.53 kilometers (7.16 miles) to the East‑Southeast (S72°E)
  • Peñarrubia, Abra, 12.16 kilometers (7.56 miles) to the North‑Northeast (N26°E)

Nearest cities

Distance from Manila: 320.71 kilometers (199.28 miles) to the South (S7°E)

National rankings

  • Population (2015): 4,574, ranked 1,612 out of 1,634
  • Land area (2007): 18.56 square kilometers, ranked 1,407 out of 1,634
  • Population density (2015): 95 inhabitants per square kilometer, ranked 1,350 out of 1,634
  • Annual population growth rate (2010 to 2015): -1.26%, ranked 1,277 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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