Sulu is an archipelago province of more than 150 islands between Basilan and Tawi-Tawi, with the Sulu Sea to the north and the Celebes Sea to the south — a chain of coral reefs, fishing communities, and the heartland of the historic Sulu Sultanate. Its capital, Jolo, sits on the island of the same name and was for centuries the center of a commercial empire that connected the Philippines to the wider Islamic world. The province is part of Region IX (Zamboanga Peninsula).
The Tausug people — the people of the current, for that is what tausug means in their language — have lived on these islands and the surrounding sea for centuries, building a culture of maritime trade and Islamic scholarship, with a long history of resistance to colonial rule.
At its height in the 18th century, the Sulu Sultanate was a major maritime trading power. It controlled key sea routes between China, the Malay world, and the Philippine islands. Jolo was a cosmopolitan trading port where merchants from across maritime Asia did business.
Sulu had 1,146,097 people in the 2024 census. The province has 19 towns on more than 157 islands and islets, set between the Sulu Sea to the north and the Celebes Sea to the south. Jolo, the main island, covers 868.5 square kilometers and is the 16th-largest island in the Philippines.


