Barito Kuala Regency is one of the regencies (kabupaten) in the Indonesian province of South Kalimantan. It is situated in the southwest of the province, bordering Central Kalimantan province to its immediate west and separated from Banjarmasin city and other regencies of the province to its east by the lower reaches of the Barito River. The regency's land area is 2,425.83 km2, and the population was 276,147 at the 2010 CensusBiro Pusat Statistik, Jakarta, 2011. and 313,021 at the 2020 Census;Badan Pusat Statistik, Jakarta, 2021. the official estimate (as at mid 2025) was 334,958 (comprising 169,297 males and 164,998 females).Badan Pusat Statistik, Jakarta, 27 February 2026, Kabupaten Barito Kuala Dalam Angka 2026 (Katalog-BPS 1102001.6304) The capital is the town of Marabahan Kota.
Administrative districts The Regency is divided into seventeen districts (), tabulated below with their areasBadan Pusat Statistik, Jakarta, 27 February 2026, Kabupaten Barito Kuala Dalam Angka 2026 (Katalog-BPS 1102001.6304) and population totals from the 2010 Census and 2120 Census, together with the official estimates for mid 2025.Badan Pusat Statistik, Jakarta, 27 February 2026, Kabupaten Barito Kuala Dalam Angka 2026 (Katalog-BPS 1102001.6304) The three most southern (Tabunganen, Tamban and Mekarsari) and the nine more geographically central of the districts lie within the official Banjarmasin metropolitan area; the other five districts (Barambai, Bakumpai, Marabahan, Tabukan and Kuripan) lie to the north outside the metropolitan area. The table also includes the locations of the district administrative centres, the number of administrative villages in each district (a total of 195 rural desa and 6 urban kelurahan), and its postal codes.
Kode Wilayah Name ofDistrict(kecamatan) Area in km2 Pop'nCensus2010 Pop'nCensus2020 Pop'nEstimatemid 2025AdmincentreNo. ofvillagesPostcodes 63.04.01 Tabunganen (a) 228.76 19,143 20,045 21,270Tabunganen Kecil 1470567 63.04.02 Tamban 170.91 31,115 31,967 33,513Purwosari I 1670566 63.04.13 Mekarsari 134.44 16,312 17,797 19,070Tamban Raya 970568 63.04.03 Anjir Pasar 108.19 15,388 17,013 18,229Anjir Pasar Kota I 1570565 63.04.04 Anjir Muara 91.95 19,456 21,918 23,652Anjir Muara Kota 1570564 63.04.05 Alalak 102.06 51,403 62,833 68,000Handil Bakti 18 (b) 70582 63.04.06 Mandastana 115.52 14,012 17,497 18,595Puntik Luar 1470580 63.04.17 Jejangkit 165.35 6,047 6,606 6,999Jejangkit Pasar 770581 63.04.08 Belawang 72.13 12,717 13,627 14,627Belawang 1370563 63.04.16 Wanaraya 156.27 12,407 14,342 15,540Kolam Kiri 1370560 63.04.14 Barambai 163.11 13,971 15,672 16,689Barambai 1170562 63.04.07 Rantau Badauh 129.12 14,132 16,464 17,370Sungai Gampa 970561 63.04.09 Cerbon 118.58 8,403 9,969 10,483Bantuil 870571 63.04.10 Bakumpai 182.00 9,321 10,537 11,452Lepasan 9 (c) 70512 & 70513 63.04.15 Marabahan 177.36 18,907 21,915 23,551Marabahan Kota 10 (d) 70511 - 70513 63.04.12 Tabukan 168.65 8,097 9,030 9,729Teluk Tamba 1170553 63.04.11 Kuripan 141.44 5,316 5,789 6,189Rimbun Tulang 970552 Totals 2,425.83 276,147 313,021 334,958 Marabahan Kota 201
Notes: (a) including three small offshore or riverine islands. (b) including three kelurahan - Berangas (with 3,828 inhabitants in mid 2024), Berangas Barat (3,670) and Handil Bakti (7,710), while the largest desa was Selamgat Dalam (with 15,743 inhabitants).Badan Pusat Statistik, Jakarta, 26 September 2025, Kecamatan Alalak Dalam Angka 2025 (Katalog-BPS 1102001.6304060) (c) including one kelurahan - Lepasan (with 3,486 inhabitants in mid 2024).Badan Pusat Statistik, Jakarta, 26 September 2025, Kecamatan Bakumpai Dalam Angka 2025 (Katalog-BPS 1102001.6304130) (d) including two kelurahan - Marabahan Kota (with 8,380 inhabitants in mid 2024) and Ulu Benteng (7,705).Badan Pusat Statistik, Jakarta, 26 September 2025, Kecamatan Marabahan Dalam Angka 2025 (Katalog-BPS 1102001.6304040)
Climate Marabahan, the seat of the regency, has a tropical rainforest climate (Af) with heavy rainfall from October to May and moderate rainfall from June to September.
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