Ilocos Sur



Dataset Description Data Format Projection Information Data Source Version

Administrative Boundaries

Includes provincial, municipal, and barangay boundaries

ESRI Shapefile (.shp)

WGS 1984, Lat/Long


2 (2011)

Landsat 7 ETM+  (Enhanced Thematic Mapper Plus)

15-m spatial resolution panchromatic band, 3 spectral bands

ERDAS Imagine (.img)

WGS 1984, UTM Zone 51N



ASTER GDEM (Advanced Spaceborne Thermal Emission and Reflection Radiometer – Global Digital Elevation Model)

30-m spatial resolution of province’s bounding box


WGS 1984, Lat/Long


2 (2011)

Ilocos Sur occupies the central section of the Ilocos Region in northern Luzon. It is bordered by Ilocos Norte to the north, Abra to the northeast, Mountain Province to the east, Benguet to the southeast, La Union to the south, and the South China Sea to the west. Its area of 2,596.00 square kilometres (1,002.32 sq mi)  occupies about 20.11% of the total land area of Region 1. The people are engaged in farming, producing food crops, mostly rice, corn, vegetable, root crops, and fruits. Non-food crops include tobacco, cotton, and tigergrass. Cottage industries include loom weaving, furniture making, jewelry making, ceramics, blacksmithing, and food processing.

Cities or Municipalities in Ilocos Sur