West Sumbawa Regency
West Sumbawa Regency is a Regency of the Indonesian Province of West Nusa Tenggara. It is located on the island of Sumbawa and has an area of 1,743.58 km2. The regency was created on 18 December 2003 from what were at that time the westernmost five districts of Sumbawa Regency. The population at the 2010 Census was 114,754, and at the 2020 Census was 145,798; the official estimate as at mid 2024 was 155,540 comprising 78,230 males and 77,300 females. The capital is the town of Taliwang.
Poto Tano, the most important harbour of West Sumbawa, is easily accessible by ferry from Lombok.
Administrative districts
West Sumbawa Regency originally comprised five districts formerly part of Sumbawa Regency, but now consists of eight districts, tabulated below with their areas and their populations at the 2010 Census and the 2020 Census, together with the official estimates as at mid 2024. The table also includes the locations of the district administrative centres, the number of administrative villages in each district, and its postal codes.| Kode Wilayah | Name of District | Area in km2 | Pop'n 2010 Census | Pop'n 2020 Census | Pop'n mid 2024 Estimate | Admin centre | No. of villages | Post code |
| 52.07.04 | Sekongkang | 273.65 | 8,179 | 14,483 | 17,440 | Sekongkang Bawah | 7 | 84457 |
| 52.07.01 | Jereweh | 527.63 | 8,370 | 9,764 | 10,010 | Beru | 4 | 84456 |
| 52.07.08 | Maluk | 38.83 | 11,929 | 11,649 | 11,650 | Benete | 5 | 84459 |
| 52.07.02 | Taliwang | 153.71 | 44,136 | 57,610 | 58,320 | Kuang | 15 | 84452 |
| 52.07.07 | Brang Ene | 252.62 | 5,088 | 6,589 | 7,030 | Manemeng | 6 | 84455 |
| 52.07.05 | Brang Rea | 258.23 | 12,498 | 16,044 | 17,060 | Tepas | 9 | 84455- 84458 |
| 52.07.03 | Seteluk | 107.37 | 15,424 | 19,413 | 20,490 | Seteluk Tengah | 10 | 84457 |
| 52.07.06 | Poto Tano | 130.23 | 9,327 | 12,513 | 13,540 | Senayan | 8 | 84454 |
| Totals | 1,743.58 | 114,754 | 145,798 | 155,540 | Taliwang | 64 |
Notes: including the small islands of Pulau Baban and Pulau Rantung off the southwest coast of Sumbawa.
including the small islands of Pulau Dua Ode, Pulau Dua Rea, Pulau Gera, Pulau Puyen, Pulau Sarang and Pulau Sesai off the west coast of Sumbawa.
comprises 7 urban kelurahan and 8 desa.
including the islands of Pulau Belang, Pulau Kambing, Pulau Kenawa, Pulau Mandik1, Pulau Namo, Pulau Paserang and Pulau Ular off the northwest coast of Sumbawa.