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Southeast Asian first-level subdivisions

228 articles

Abra (province)

Abra (Lalawigan ti Abra) is a landlocked province in the Cordillera Administrative Region, northern Luzon, Philippines, with capital Bangued, 27 municipalities, 246,948 residents (2024), created from Ilocos Sur in 1846.

Aceh

Aceh, an Indonesian province on northwestern Sumatra with capital Banda Aceh, holds special autonomy under Law 11/2006 to implement Islamic sharia via Qanun; formerly Nanggroe Aceh Darussalam, site of the 2004 tsunami and 2005 Helsinki peace deal.

Aklan

Aklan is a province of the Philippines occupying northern Panay in the Western Visayas, with Kalibo as capital; it is best known for Boracay Island and the Ati-Atihan Festival.

Albay

Albay is a province in the Bicol Region of southeastern Luzon, Philippines, home to Mayon Volcano. Capital-area center Legazpi City; population 1,379,398 (2024); 15 municipalities, 3 cities, 720 barangays; agriculture, tourism, cement.

An Giang province

An Giang province (tỉnh An Giang), Vietnam: Mekong Delta province formed 1 July 2025 by merging old An Giang and Kien Giang; 9,888.91 km2, about 4.95 million people, center Rạch Giá, largest in the delta.

Antique (province)

Antique is a seahorse-shaped Philippine province on Panay Island's western coast, Western Visayas, with 18 municipalities, 643,173 people (2024), capital San Jose, and a PhP 82.31 billion GDP in 2025.

Aurora (province)

Aurora is a coastal province of Central Luzon, Philippines, capital Baler, with 8 municipalities, 151 barangays, and 240,824 residents (2024). Independent from Quezon since August 13, 1979; mountainous, typhoon-prone Pacific-facing province.

Ayeyarwady Region

Ayeyarwady Region (ဧရာဝတီ, formerly Irrawaddy), Myanmar's Delta region, capital Pathein, 26 townships, 35,964 km2, about 6.2 million people; rice bowl supplying up to 65% of national rice, devastated by Cyclone Nargis in 2008.

Bac Ninh (district)

Bac Ninh (Bắc Ninh), Vietnamese administrative unit in the Red River Delta; formerly Kinh Bac, a province from 1831, merged with Bac Giang in 2025, a centrally-governed city from 20 September 2026.

Bago Region

Bago Region (ပဲခူးတိုင်းဒေသကြီး) is a central Myanmar administrative region split by the Bago Yoma into east and west; capital Bago city; rice and teak agriculture, 4.45 million people (2024 census), 39 irrigation dams, and heavy conflict displacement in its east.

Bali

Bali (Pulau Bali, Pulau Dewata), an Indonesian province between Java and Lombok; capital Denpasar, 9 regencies, about 5,636 km2, 4.4 million people, tourism-driven economy with a 2023 foreign tourist levy.

Banteay Meanchey

Banteay Meanchey (បន្ទាយមានជ័យ), a northwestern Cambodian province bordering Thailand, ISO code KH-1, capital Sisophon. Covers 6,679 km², nine districts and municipalities, and handles the bulk of Cambodia-Thailand cross-border trade.

Bataan

Bataan is a province in Central Luzon, Philippines, covering the Bataan Peninsula (1,372.98 sq km), capital Balanga City. Established 1757 from Pampanga; known for the 1942 Bataan Death March, Mount Natib, and the Freeport Area of Bataan.

Batanes

Batanes is the Philippines' northernmost and smallest province, ten volcanic islands in the Luzon Strait with six municipalities, 18,937 residents (2024), Ivatan culture, protected landscape status, and managed community-based tourism.

Batangas

Batangas is a province in CALABARZON, southwestern Luzon, Philippines, with capital Batangas City; 30 municipalities, 4 cities, land area 316,581 ha, home to Taal Volcano, GDP PhP 713.22 billion (2025).

Battambang

Battambang (បាត់ដំបង) is a province in northwestern Cambodia, named after its capital city on the Sangker River and known as "the rice bowl of Cambodia" for its dominant role in rice production.

Bengkulu (district)

Bengkulu (Propinsi Bengkulu, Bencoolen) is a province-level (ADM1) administrative division of Indonesia on Sumatra's west coast, capital Bengkulu City; established 18 November 1968 as the 26th province, with 9 regencies plus the city, 129 districts, and a British EIC colonial past from 1685.

Benguet

Benguet is a landlocked province in the Cordillera Administrative Region, northern Luzon, Philippines, with capital La Trinidad. Known as the Salad Bowl of the Philippines for vegetable farming and for gold and copper mining; 13 municipalities, 473,190 people (2024).

Bicol Region

Bicol Region (Region V, Bicolandia) is a Philippine administrative region of six provinces in southeastern Luzon; 6.08 million people in 2020, Naga City as religious center, services-led economy, and the country's highest regional poverty rate in 2025.

Bình Định province

Bình Định was a south-central Vietnamese province of about 6,040 km² and 1.5 million people, capital Quy Nhơn, homeland of the Tây Sơn uprising and Emperor Quang Trung; merged into Gia Lai province on 1 July 2025.

Bình Dương province

Bình Dương was a province of Vietnam on the northern edge of Ho Chi Minh City, merged into an expanded Ho Chi Minh City in 2025.

Bukidnon

Bukidnon: landlocked plateau province in Northern Mindanao, Philippines; capital Malaybalay City; 10,498.59 km2, fourth-largest province; population 1,541,308 (2020); top agricultural producer, home of the Kaamulan festival and Mount Kitanglad.

Bulacan

Bulacan is a province of Central Luzon, Philippines, north of Manila, capital Malolos. 2020 population 3,708,890 (2nd of 81 provinces); site of the 1899 Malolos Republic; largest Central Luzon economy; MRT-7, NSCR, and a planned 200-million-passenger airport.

Cagayan

Cagayan is a Philippine province on the northeastern tip of Luzon, capital Tuguegarao, population 1,268,603 (2020), area 9,002.70 sq km, drained by the 330-km Cagayan River; distinct from Cagayan de Oro and the Cagayan Valley region.

Cagayan Valley

Cagayan Valley (Region II) is a Philippine administrative region in northeastern Luzon with five provinces (Batanes, Cagayan, Isabela, Nueva Vizcaya, Quirino), 3,777,608 people (2024), and the Cagayan River valley.

Calabarzon

Calabarzon (Region IV-A) is a Philippine administrative region in southwestern Luzon comprising Cavite, Laguna, Batangas, Rizal, and Quezon, created by Executive Order 103 in 2002; the country's most populous region with 16.93 million people in 2024.

Camarines Sur

Camarines Sur, a province of the Bicol Region, Philippines, capital Pili. Most populous Bicol province (2,063,314 in 2024 census), founded 1579, largest regional economy, home to Naga City and the sinarapan fish.

Caraga

Caraga (Region XIII) is the northeastern Mindanao administrative region of the Philippines, created by RA 7901 in 1995 with five provinces and Butuan City as center; population 2.87 million (2024), second-fastest-growing regional economy, and the country's nickel-mining heartland.

Cavite

Cavite (Kawit-derived name) is a Philippine province south of Manila Bay in CALABARZON, population 4,573,884 (2024), capital Trece Martires City, birthplace of the 1896 revolution and 1898 independence proclamation, GDP Php 875.67 billion in 2025.

Cebu

Cebu (Sugbu) is a first-class province in Central Visayas, Philippines, the country's oldest province (founded 1569) and Visayan economic hub, site of Magellan's 1521 landing, the Battle of Mactan, and the first Spanish settlement.