West Pasaman Regency (; ) is a regency () of West Sumatra province of Indonesia. The most northerly of the coastal regencies within the province, it has a land area of 3,887.77 km2. It had a population of 365,129 at the 2010 CensusBiro Pusat Statistik, Jakarta, 2011. and 431,672 at the 2020 Census;Badan Pusat Statistik, Jakarta, 2021. the official estimate as of mid 2025 was 461,867 (comprising 232,497 males and 229,370 females).Badan Pusat Statistik, Jakarta, 27 February 2026, Kabupaten Pasaman Barat Dalam Angka 2026 (Katalog-BPS 1102001.1312) The seat of the regency administration is the town of Simpang Ampek. History Pasaman Barat Regency was created by decision of Parliament No. 38 of 2003 and at that time comprised seven districts - Sungai Beremas, Ranah Batahan, Lembah Melintang, Gunung Tuleh, Pasaman, Kinali and Talamau Districts. Subsequently, based on decision of Regional Law No. 4 of 2003, this was increased by four new districts - Koto Balingka, Sungai Aur, Sasak Ranah Pasisie and Luhak Nan Duo.
Administrative districts West Pasaman Regency is divided into eleven districts (kecamatan), tabulated below with their areas and their populations at the 2010 Census and the 2020 Census, together with the official estimates as of mid 2025.Badan Pusat Statistik, Jakarta, 27 February 2026, Kabupaten Pasaman Barat Dalam Angka 2026 (Katalog-BPS 1102001.1312) The table also includes the location of the district administrative centres, the number of administrative villages (nagari) in each district, and its post code.
Name ofDistrict(kecamatan) Areain km2 Pop'nCensus2010 Pop'nCensus2020 Pop'nEstimatemid 2025AdmincentreNo. ofvillages (nagari)Postcode Sungai Beremas (a)440.4822,34527,55630,423Air Bangih126573 Ranah Batahan 354.8823,48327,48129,987Silaping726366 Koto Balingka 340.7826,04830,55032,678Parit626572 Sungai Aur 420.1630,84636,03137,041Koto Dalam726574 Lembah Melintang 263.7741,92449,28952,841Ujung Gading926570 Gunung Tuleh 453.9720,31524,16626,465Simpang Tigo Alin726571 Talamau 324.2425,87129,80531,547Talu726561 Pasaman 508.9362,86477,10282,304Simpang Ampek1626566 Luhak Nan Duo 174.2137,40944,08447,068Sungai Talang926568 Sasak Ranah Pasisie 123.7113,23314,94616,112Sasak426367 Kinali 482.6460,79170,66275,401Kinali1726567 Totals 3,887.77365,129431,672461,867Simpang Ampek90
Note: (a) includes 9 offshore islands.
Airport Pusako Anak Nagari Airport is an airport that is located in Luhak Nan Duo district of the West Pasaman Regency.
Mount Talamau Talamau Peak (2,900 masl) can be accessed from Bundaran Simpang Ampek Pasaman vice versa in two or three days trip and located at Jorong Pinagar Nagari Aur Kuning, Pasaman District, West Pasaman Regency. Mount Talamau has more than 10 waterfalls and at around the peak there are also more than 10 lakes surrounding by many kinds of colourful flowers.
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