East Sumba Regency
East Sumba Regency is geographically the largest of the four regencies which divide the island of Sumba, within East Nusa Tenggara Province of Indonesia. It occupies 62% of the entire island, being much less densely populated than the western third. The town of Waingapu is the capital of East Sumba Regency. The population of East Sumba Regency was 227,732 at the 2010 Census and 244,820 at the 2020 Census; the official estimate as at mid 2024 was 277,290.
Administrative districts
The East Sumba Regency is composed of twenty-two districts, whose areas and populations at the 2010 Census and 2020 Census are listed below, together with the official estimates as at mid 2024. The table also includes the locations of the district headquarters, the number of administrative villages in each district, and its postal code.| Kode Wilayah | Name of District | Area in km2 | Pop'n Census 2010 | Pop'n Census 2020 | Pop'n Estimate mid 2024 | Admin centre | No. of villages | Post code |
| 53.11.03 | Lewa | 281.1 | 15,423 | 15,404 | 17,659 | Pamati Karata | 8 | 87150 |
| 53.11.04 | Nggaha Oriangu | 286.4 | 8,614 | 9,611 | 11,101 | Karipidita | 8 | 87155 |
| 53.11.18 | Lewa Tidahu | 322.1 | 6,129 | 6,826 | 8,213 | Laikeri | 6 | 87151 |
| 53.11.19 | Katala Hamu Lingu | 453.1 | 3,699 | 4,043 | 4,628 | Kombapari | 5 | 87152 |
| 53.11.05 | Tabundung | 514.4 | 8,301 | 9,051 | 10,300 | Malahar | 10 | 87160 |
| 53.11.06 | Pinupahar | 246.6 | 6,410 | 6,855 | 8,103 | Tawui | 6 | 87161 |
| 53.11.12 | Paberiwai | 199.7 | 5,619 | 6,221 | 7,050 | Kananggar | 7 | 87175 |
| 53.11.13 | Karera | 334.6 | 7,365 | 7,668 | 8,919 | Nggongi | 7 | 87172 |
| 53.11.15 | Matawai La Pawu | 405.4 | 5,786 | 6,092 | 7,090 | Tanarara | 6 | 87174 |
| 53.11.14 | Kahaungu Eti | 475.1 | 8,214 | 8,725 | 10,435 | Kamanggih | 9 | 87171 |
| 53.11.22 | Mahu | 196.6 | 3,922 | 4,119 | 5,156 | Wairara | 6 | 87170 |
| 53.11.21 | Ngadu Ngala | 207.9 | 4,787 | 5,047 | 5,965 | Praiwitu | 5 | 87172 |
| 53.11.10 | Pahunga Lodu | 349.8 | 12,247 | 13,066 | 15,064 | Ngala | 8 | 87182 |
| 53.11.11 | Wula Waijelu | 221.3 | 6,902 | 7,636 | 8,886 | Wula | 7 | 87183 |
| 53.11.09 | Rindi | 366.5 | 9,070 | 9,628 | 11,356 | Tanaraing | 8 | 87181 |
| 53.11.08 | Umalulu | 307.9 | 16,251 | 17,667 | 20,280 | Melolo | 10 | 87180 |
| 53.11.07 | Pandawai | 412.6 | 14,776 | 17,298 | 19,907 | Kawangu | 7 | 87176 |
| 53.11.17 | Kambata Mapambuhang | 412.7 | 3,434 | 3,822 | 4,479 | Lukuwingir | 8 | 87171 |
| 53.11.01 | Kota Waingapu | 73.8 | 35,142 | 35,856 | 37,013 | Waingapu | 7 | 87111-87116 |
| 53.11.16 | Kambera | 52.0 | 31,137 | 33,466 | 36,153 | Pakukinjara | 8 | 87113-87116 |
| 53.11.02 | Haharu | 601.5 | 5,586 | 6,248 | 7,151 | Rambangaru | 10 | 87153 |
| 53.11.20 | Kanatang | 279.4 | 8,918 | 10,271 | 12,382 | Temu | 7 | 87154 |
| Totals | 7,000.5 | 227,732 | 244,820 | 277,290 | Waingapu | 156 |
Note: includes the kelurahan of Lewa Paku. includes islands off the south of Sumba Island, the largest being Pulau Halura, Pulau Manggudu and Pulau Koatak. includes the kelurahan of Lumbukore.
includes the 2 kelurahan of Kawangu and Watumbaka. except the desa of Lukuwingir.
comprises 4 kelurahan and 3 desa.
comprises 7 kelurahan plus the desa of Kiritana.
includes the kelurahan of Temu.