Editing Sumba (section)

==Administration==
Sumba is part of the [[East Nusa Tenggara]] Province, and there is no single administrative body at the island level. The island and the very small offshore islands administered with it are split into four [[Regency (Indonesia)|regencies]] (local government regions), following re-organisation on 2 January 2007 when two new regencies were created from parts of West Sumba Regency. The four regencies are [[West Sumba Regency|Sumba Barat]] (West Sumba), [[Southwest Sumba Regency|Sumba Barat Daya]] (Southwest Sumba), [[Central Sumba Regency|Sumba Tengah]] (Central Sumba) and [[East Sumba Regency|Sumba Timur]] (East Sumba), which together accounted for 14.7% of the provincial population in 2023. The regencies are listed below with their areas and their populations at the 2010 Census<ref name="Biro Pusat Statistik 2011">Biro Pusat Statistik, Jakarta, 2011.</ref> and the 2020 Census,<ref name="Badan Pusat Statistik 2021">Badan Pusat Statistik, Jakarta, 2021.</ref> together with the official estimates as at mid 2024.<ref name="Badan Pusat Statistik 2024">Badan Pusat Statistik, Jakarta, 28 February 2024, ''Provinsi Nusa Tenggara Timur Dalam Angka 2024'' (Katalog-BPS 1102001.53)</ref> The provincial capital is not on Sumba Island, but in [[Kupang]] on [[West Timor]].

{| class="wikitable sortable" style="margin-bottom: 0;"
! Kode <br>Wilayah|| Name of<br>City or<br>Regency !! Statute <br />(including year <br />when established) !! Area<br />in<br />km<sup>2</sup> !! Pop'n <br /> 2010 <br /> Census !! Pop'n <br /> 2020 <br />Census !! Pop'n <br /> mid 2024 <br />Estimate !! Capital !! [[Human Development Index|HDI]]<ref>{{Cite web|url=https://ntt.bps.go.id/indicator/26/46/1/-metode-baru-indeks-pembangunan-manusia-ipm-menurut-kabupaten-kota.html|title=[New Method] Human Development Index by Regency/City 2020-2022|publisher=[[Statistics Indonesia]]|date=2022|language=id|access-date=13 February 2023}}</ref><br />2022 estimate
|-
| 53.11 || [[East Sumba Regency]]<br />(Sumba Timur)|| UU 69/1958 ||align="right"|  {{formatnum: 7000.50}} ||align="right"|  {{formatnum: 227732}} ||align="right"|  {{formatnum: 244820}} ||align="right"|  {{formatnum: 277290}} || [[Waingapu]] || 0.6617 ({{fontcolor|#fc0|Medium}})
|-
| 53.12 || [[West Sumba Regency]]<br />(Sumba Barat) || UU 69/1958 ||align="right"|  {{formatnum: 737.42}} ||align="right"|  {{formatnum: 110993}} ||align="right"|  {{formatnum: 145097}} ||align="right"|  {{formatnum: 155013}} || [[Waikabubak]] || 0.6443 ({{fontcolor|#fc0|Medium}})
|-
| 53.17 || [[Central Sumba Regency]]<br />(Sumba Tengah)|| UU 3/2007 ||align="right"|  {{formatnum: 2,060.54}} ||align="right"|  {{formatnum: 62485}} ||align="right"|  {{formatnum: 85482}} ||align="right"|  {{formatnum: 92,354}} || [[Waibakul]] || 0.6271 ({{fontcolor|#fc0|Medium}})
|-
| 53.18 || [[Southwest Sumba Regency]]<br />(Sumba Barat Daya)|| UU 16/2007 ||align="right"|  {{formatnum: 1445.32}} ||align="right"|  {{formatnum: 284903}} ||align="right"|  {{formatnum: 303650}} ||align="right"|  {{formatnum: 328771}} || [[Tambolaka]]|| 0.6315 ({{fontcolor|#fc0|Medium}})
|-
| || '''''Sumba''''' || ||align="right"| ''{{formatnum: '''11243.78'''}}'' ||align="right"| ''{{formatnum: '''686113'''}}'' ||align="right"| ''{{formatnum: '''779049'''}}'' ||align="right"|  ''{{formatnum: '''853428'''}}'' || ||
|}