10 Facts About Ilocos Sur

Ilocos Sur, is a province in the Philippines located in the Ilocos Region in Luzon.

Ilocos Sur is bordered by Ilocos Norte and Abra to the north, Mountain Province to the east, La Union and Benguet to the south and the South China Sea to the west.

Ilocos Sur was founded by the Spanish conquistador Juan de Salcedo in 1572.

The southern portion, called Ilocos Sur, included the northern part of La Union and all of what is the province of Abra.

Ilocos Sur previously extended as far south as Namacpacan with the territory south of this belonging to Pangasinan.

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Abra, which was part of Ilocos Sur, was created in 1864 with Lepanto as a sub-province to Ilocos Sur and remained as such until March 1971 when the passage of Act made it again a separate province.

At the height of migration, the population density of Ilocos Sur was 492 inhabitants per square mile, which made it the most dense region in the Philippines, excluding Manila.

Ilocos Sur occupies the central section of the Ilocos Region in northern Luzon.

Ilocos Sur is inhabited mostly by Ilocanos belonging to the third largest ethnic group of Austronesian origin.

Ilocos Sur has 547 public schools including five general high schools, one university, one agricultural college and 56 private schools, 16 of which are Catholic.