San Isidro
Province of Abra

Summary data
Island groupLuzon
RegionCordillera Administrative Region (CAR)
ProvinceAbra
Barangay count9
Postal code2809
Coastal/Landlockedlandlocked
Marine waterbodiesnone (landlocked)
Area (2007)48.07 km2
(18.56 sq. mi)
Population (2015)4,574
Density (2015)95 per km2
(246 per sq. mi)
Coordinates17° 28' North, 120° 36' East
(17.4656 ° N, 120.6017 ° E)
Estimated elevation
above sea level
143.0 meters
(469.0 feet)
(Jump to Map)

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. The 2015 Census records its population as 4,574 representing 1.90% of the total population of Abra province, or 0.27% of the overall population of the Cordillera Administrative Region. Based on such figures, the population density is computed at 95 inhabitants per square kilometer or 246 inhabitants per square mile.

Demographic profile of barangays

San Isidro has 9 barangays as shown in the following table.

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%
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.

Census datePopulationGrowth rate
1960 Feb 152,605
1970 May 63,0981.71%
1975 May 12,924-1.15%
1980 May 13,0871.09%
1990 May 13,7441.95%
1995 Sep 13,8420.49%
2000 May 14,2932.41%
2007 Aug 14,6471.10%
2010 May 14,8881.86%
2015 Aug 14,574-1.26%
Map

The town center of San Isidro is situated at approximately 17° 28' North, 120° 36' East, which has an elevation 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.

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)

Notes

  1. Unless otherwise specified, population count (excluding percentages) and land area figures are derived from the Philippine Statistics Authority.
  2. Postal codes are from the Philippine Postal Corporation.
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