Sumba Barat (Indonesia)

West Sumba Regency (Indonesian: Kabupaten Sumba Barat) is a regency in East Nusa Tenggara Province of Indonesia. Established in 1958, the regency was considerably reduced on 2 January 2007 with the creation of new Regencies on Sumba Island under Law UU No.16 of that year. Its area is now 737.42 km2, and its population was 110,993 at the 2010 census and 145,097 at the 2020 Census; the official estimate as at mid 2025 was 160,170 (comprising 81,800 males and 78,370 females). It has its seat (capital) in (Kota) Waikabubak. The region is rather dry. One of the main problems for people living in rural areas in the province is frequent shortages of water. Although there are some local supplies of water from wells and springs, water from these sources often becomes scarce during the long dry seasons. In some villages local non-government organisations, some supported with international assistance, support small projects to improve village water supplies.