West Kotawaringin Regency

West Kotawaringin Regency (Indonesian: Kabupaten Kotawaringin Barat) is one of the thirteen regencies which comprise the Central Kalimantan Province on the island of Kalimantan (Borneo), Indonesia. It originally comprised the whole western part of the province, having been split from a single Kotawaringin Regency on 26 June 1959 into separate regencies for West and East Kotawaringin, but on 10 April 2002 the most westerly districts of West Kotawaringin were split off to form the new Lamandau Regency and Sukamara Regency. The residual West Kotawaringin Regency has a land area of about 10,759 km², and its population was 235,803 at the 2010 Census^[2] and 270,388 at the 2020 Census;^[3] the official estimate as at mid 2024 was 282,790 (comprising 146,120 males and 136,670 females).^[1] The large town of Pangkalan Bun in Arut Selatan District is the capital of West Kotawaringin Regency.

West Kotawaringin Regency Kabupaten Kotawaringin Barat
Regency
Betang traditional house
Coat of arms
Location within Central Kalimantan
West Kotawaringin Regency Location in Kalimantan and Indonesia Show map of Kalimantan West Kotawaringin Regency West Kotawaringin Regency (Indonesia) Show map of Indonesia
Coordinates: 2.4000°S 111.7333°E / -2.4000; 111.7333
Country	Indonesia
Region	Kalimantan
Province	Central Kalimantan
Capital	Pangkalan Bun
Government
• Regent	Nurhidayah [id]
• Vice Regent	Suyanto
Area
• Total	10,759.00 km2 (4,154.07 sq mi)
Population  (mid 2024 estimate)
• Total	282,790
• Density	26/km2 (68/sq mi)
	[1]
Time zone	UTC+7 (Western Indonesia Time)
Area code	(+62) 532
Website	kotawaringinbaratkab.go.id

Administrative districts

West Kotawaringin Regency now consists of six administrative districts (kecamatan), tabulated below with their areas^[1] and population totals from the 2010 Census^[2] and the 2020 Census,^[3] together with the official estimates as at mid 2024.^[1] Pangkalan Banteng and Pangkalan Lada Districts were previously the northern part of Kumai District. The table also includes the locations of the district administrative centres, the number of administrative villages in each district (a total of 81 rural desa and 13 urban kelurahan), and its post codes.

Kode Wilayah	Name of District (kecamatan)	Area in km2	Pop'n Census 2010	Pop'n Census 2020	Pop'n Estimate mid 2024	Admin centre	No. of villages	Post codes
62.01.03	Kotawaringin Lama [4]	1,218.0	16,796	19,138	19,900	Kotawaringin Hilir	17 (a)	74161
62.01.02	Arut Selatan [5] (South Arut)	2,400.0	98,406	117,742	124,790	Madurejo (in Pangkalan Bun)	20 (b)	74111 - 74117
62.01.01	Kumai[6]	2,921.0	46,544	52,633	54,580	Candi	18 (c)	74181
62.01.06	Pangkalan Banteng [7]	1,306.0	30,597	37,370	37,770	Karang Mulya	17	74183
62.01.05	Pangkalan Lada [8]	229.03	27,934	34,164	36,520	Pandu Sanjaya	11	74184
62.01.04	Arut Utara [9] (North Arut)	2,685.0	15,526	9,341	9,240	Pangkut	11 (d)	74152
	Totals	10,759.0	235,803	270,388	282,790	Pangkalan Bun	94

Notes: (a) including 2 kelurahan (Kotawaringin Hilir and Kotawaringin Hulu). (b) comprising 7 kelurahan (Mendawai Seberang, Mendawai, Madurejo, Sidorejo, Raja, Raja Seberang and Baru) and 13 desa.
(c) including 3 kelurahan (Candi, Kumai Hilir and Kumai Hulu). (d) including 1 kelurahan (Pangkut).