Also known as: Lalawigan ng Zamboanga Sibugay
Zamboanga Sibugay is a province in Region IX (Zamboanga Peninsula). Population 661K (PSA 2024 census), 0 cities + 16 municipalities, 389 barangays total, land area 3,481.28 km². Provincial capital: Ipil.
Zamboanga Sibugay is a province in Region IX (Zamboanga Peninsula). Its capital is Ipil.
Zamboanga Sibugay had 661,498 residents in the 2024 census (PSA 2024 Census of Population (POPCEN 2024), reference date July 1, 2024). That is the most recent official count. There is no 2026 census result, so any 2026 population figure is an estimate.
Zamboanga Sibugay covers 3,481.28 km², per the PSA Philippine Statistical Yearbook figure used on this page.
Zamboanga Sibugay has 0 component cities and 16 municipalities (16 LGUs under the province), per PSA's Philippine Standard Geographic Code (2Q 2026), and 389 barangays.
Zamboanga Sibugay has no component cities. Its 16 municipalities are Alicia, Buug, Diplahan, Imelda, Ipil, Kabasalan, Mabuhay, Malangas, Naga, Olutanga, Payao, Roseller Lim, Siay, Talusan, Titay and Tungawan.
Zamboanga Sibugay was created in 2000 by Republic Act No. 8973, carved from Zamboanga del Sur's former Third Congressional District — but not, as is sometimes assumed, because the parent province was too large to administer. The actual history is a grassroots political movement: a 1993 regional identity campaign led to a 1997 People's Initiative vote among residents of the district, which then carried a bill through Congress and was ratified by a February 2001 plebiscite with 70.04% voting yes.
Key industries: Agriculture (rice, corn, coconut, rubber), Semi-processed rubber, Fishing (Sibuguey Bay), Mining
The province runs entirely through 16 municipalities with no cities at all. Its most notable recent land-use story is a mining-driven economic boom: Zamboanga Sibugay has been the fastest-growing provincial economy in the Zamboanga Peninsula for two consecutive years, with an 89.2% surge in mining and quarrying activity in 2023 alone, though that growth has come with real documented costs, including displaced families and environmental concerns. Notably, the province's population actually declined slightly between the 2020 and 2024 censuses even as its economy posted the region's fastest growth.
Key industries: Agriculture (rice, corn, coconut, rubber), Semi-processed rubber, Fishing (Sibuguey Bay), Mining
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