Ilocos Sur

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Ilocos Sur Province
Official seal of the province
Basic data
Region : Ilocos region
Capital : Vigan
Population : 689,668
August 1, 2015 census
Population density : 267 inhabitants per km²
Area : 2,579.6  km²
PSGC : 012900000
Governor : Deogracias Victor B. Savellano
Official website:
 - Highly urbanized cities 0
 - provincial cities 2
 - municipalities 32
 - Barangays 768
 - electoral districts 2
Location of Ilocos Sur in the Philippines

Coordinates: 17 ° 15 ′  N , 120 ° 36 ′  O Ilocos Sur is a Philippine province in the Ilocos region on the main island of Luzon . The capital of Ilocos Sur is Vigan .

The main languages ​​spoken in Ilocos Sur are Ilokano , English and, in the coastal area, Tagalog .


The province is bordered by the provinces of Abra in the north, Mountain Province in the east, and La Union and Benguet in the south. In the west the province borders on the South China Sea and in the east on the Philippine Cordillera . The Abra flows into the sea south of Vigan City . The southern border to La Union is based on the Amburayan river to its mouth.

Cities and municipalities

Ilocos Sur is divided into 2 cities and 32 municipalities, which in turn are divided into 768 barangays .




Ilocos Sur was founded by the Spanish conquistador Juan de Salcedo in 1572 , two years later the Chinese pirate Limahong landed in the region with 3,000 men.

In the course of the British invasion of the Philippines at the end of the Seven Years' War , there were uprisings in the province in 1762/63. These were led by Diego Silang and his wife Gabriela . Her greatest achievement was the capture of the city of Vigan.

National parks



In the municipality of Santa Maria is the old Spanish church Nuestra Señora de la Asuncion , in addition to the old town of Vigan Vity the World Heritage Site of UNESCO belongs.