Ilocos Sur
Ilocos Sur is a province in the Ilocos Region on the northern island of Luzon, Philippines. It borders 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. The capital city is Vigan, and the largest city is Candon. The province covers about 2,596 square kilometers and has two cities (Vigan and Candon), 32 municipalities, and 768 barangays. About 710,000 people live there (2024).
Geography and climate: The land runs from flat coastal plains in the west to mountains in the east. Elevation ranges from about 10 meters to 1,700 meters. The climate is mostly dry from October to May, with a rainy season starting in August. The average temperature is around 27°C.
People and language: Most residents are Ilocano. Ilocano is the main language, while Filipino/Tagalog and English are also common. The province is mainly Roman Catholic, with other religions present.
Economy: Agriculture is the main livelihood. Farmers grow rice, corn, tobacco, fruits and vegetables. The province is also known for weaving, furniture making, pottery, and other crafts. Tobacco has long been an important crop.
Heritage and tourism: Ilocos Sur is famous for its history and culture. The UNESCO World Heritage City of Vigan preserves a well-planned Spanish-era town with old houses and cobblestone streets. The Santa Maria Church is part of the Baroque Churches of the Philippines. Other notable sites include Bantay Church and Bell Tower, and the historic Calle Crisologo in Vigan.
History at a glance: The region was known as Ylokos before Spanish arrival. Vigan was founded in 1574 and became an important center during Spanish rule. Ilocos Sur’s boundaries were adjusted in the early 20th century. The area saw revolts, World War II battles like Bessang Pass, and later modernization. In recent years, the province faced earthquakes in 2022 that damaged several towns and heritage sites.
Education and landmarks: Ilocos Sur has public and private schools and is served by the Ilocos Sur Electric Cooperative. Museums like the Ilocos Sur Museum preserve local history and culture. The province remains a place of rich heritage, strong farming communities, and vibrant Ilocano culture.
This page was last edited on 3 February 2026, at 20:06 (CET).