| Official Name: | Tanah Bumbu Regency |
| Native Name: | Kabupaten Tanah Bumbu |
| Settlement Type: | Regency |
| Motto: | Bersujud (Kneeling to God) |
| Subdivision Type: | Country |
| Subdivision Name: | Indonesia |
| Subdivision Type1: | Province |
| Subdivision Name1: | South Kalimantan |
| Subdivision Type3: | Capital |
| Subdivision Name3: | Batulicin |
| Established Title: | Established |
| Established Date: | 8 April 2003 |
| Area Total Km2: | 4890.30 |
| Population As Of: | mid 2023 estimate |
| Population Note: | [1] |
| Population Total: | 343741 |
| Population Density Km2: | auto |
| Timezone: | WITA |
| Utc Offset: | +8 |
| Area Code: | 0518 |
Tanah Bumbu is one of the regencies in the Indonesian province of South Kalimantan. It was formerly part of Kotabaru Regency, but was split off on 25 February 2003 to form a separate regency, following dissatisfaction on the Kalimantan mainland territories with administration from Laut Island. It covers an area of 4,890.3 km2 and had a population of 267,929 at the 2010 Census[2] and 322,646 at the 2020 Census;[3] the latest official estimate (as at mid 2023) is 343,741 (comprising 176,272 males and 167,469 females).[4] The regency's capital is the town of Batulicin.
At the 2020 Census Tanah Bumbu Regency was divided into ten districts (kecamatan), but two new districts have subsequently been added - Kusan Tengah from part of Kusan Hilir District, and Teluk Kepayang from part of Kusan Hulu District. The twelve districts are listed below with their areas and their 2010[2] and 2020 Census[3] populations, together with the official estimates as at mid 2023.[5] The table also includes the locations of the district administrative centres, the number of administrative villages in each district (totalling 144 rural desa and 5 urban kelurahan), and its post code.
| Kode Wilayah | Name of District (kecamatan) | Area in km2 | Pop'n Census 2010 | Pop'n Census 2020 | Pop'n Estimate mid 2023 | Admin centre | No. of villages | Post code | |
|---|---|---|---|---|---|---|---|---|---|
| 63.10.02 | Kusan Hilir (Lower Kusan) | 74.56 | 42,829 | 46,920 | 34,498 | Kota Pagatan | 22 (a) | 72273 | |
| 63.10.11 | Kusan Tengah (Central Kusan) | 214.45 | (b) | (b) | 15,754 | Saring Sungai Bubu | 13 | 72273 | |
| 63.10.03 | Sungai Loban (Loban River) | 383.91 | 18,867 | 24,310 | 26,055 | Sari Mulya | 17 | 72274 | |
| 63.10.04 | Satui | 877.87 | 49,252 | 54,920 | 57,067 | Sungai Danau | 16 | 72276 | |
| 63.10.09 | Angsana | 195.95 | 16,347 | 22,670 | 23,493 | Angsana | 9 | 72275 | |
| 63.10.05 | Kusan Hulu (Upper Kusan) | 249.73 | 18,910 | 20,420 | 12,176 | Binawara | 11 | 72270 | |
| 63.10.10 | Kuranji | 114.64 | 7,558 | 10,120 | 10,662 | Giri Mulya | 7 | 72272 - 72274 | |
| 63.10.12 | Teluk Kepayang (Kepayang Bay) | 1,253.51 | (c) | (c) | 9,616 | Teluk Kepayang | 10 | 72270 | |
| 63.10.01 | Batulicin (d) | 135.16 | 13,430 | 21,040 | 22,944 | Batulicin | 9 (e) | 72211 - 72273 | |
| 63.10.07 | Karang Bintang | 201.40 | 15,814 | 20,090 | 21,140 | Karang Bintang | 11 | 72210 | |
| 63.10.06 | Simpang Empat (f) (g) | 293.48 | 67,909 | 78,900 | 84,925 | Kampung Baru | 12 (h) | 72211 -72213 | |
| 63.10.08 | Mantewe | 895.64 | 16,933 | 23,360 | 25,413 | Mantewe | 12 | 72211 | |
| Totals | 4,890.30 | 267,929 | 322,646 | 343,741 | Batulicin | 149 |
Notes: (a) includes one kelurahan - Kota Pagatan.
(b) the figure for the new Kusan Tengah District is included with that for Kusan Hilir District, from which it was cut out.
(c) the figure for the new Teluk Kepayang District is included with that for Kusan Hulu District, from which it was cut out.
(d) includes the three offshore islands of Suwangi, Anak Suwangi and Sungai Dua.
(e) includes 2 kelurahan - Batulicin and Gunung Tinggi. (f) not to be confused with the district of the same name in Banjar Regency.
(g) includes the three offshore islands of Burung, Hantu and Tampakan. (h) includes 2 kelurahan - Kampung Baru and Tungkaran Pangeran.