| Official Name: | East Kolaka Regency |
| Native Name: | Kabupaten Kolaka Timur |
| Native Name Lang: | id |
| Type: | Regency |
| Motto: | Inae Konasara Iye Pinesara Inae Liasara Iye Pinekasara |
| Coordinates: | -3.9794°N 121.9°W |
| Subdivision Type: | Country |
| Subdivision Name: | Indonesia |
| Subdivision Type1: | Province |
| Subdivision Name1: | Southeast Sulawesi |
| Seat Type: | Capital |
| Seat: | Tirawuta |
| Leader Title: | Regent (Bupati) |
| Leader Name: | Abdul Aziz. SH |
| Leader Title1: | Vice Regent |
| Area Total Km2: | 3991.78 |
| Population As Of: | mid 2023 estimate |
| Population Total: | 126754 |
| Population Density Km2: | auto |
| Population Footnotes: | [1] |
| Timezone1: | ICST |
| Utc Offset1: | +8 |
| Pushpin Map: | Indonesia_Sulawesi#Indonesia |
| Pushpin Map Caption: | Location in Sulawesi and Indonesia |
| Pushpin Label Position: | left |
| Postal Code Type: | Postcode |
| Postal Code: | 93573 |
| Area Code Type: | Area code |
| Area Code: | (+62) 405 |
The East Kolaka Regency is a new and the only landlocked regency of Southeast Sulawesi, Indonesia, established on 11 January 2013 from the former eastern nine districts of the Kolaka Regency. The administrative centre lies at Tirawuta; its current Regent (from 2022) is Abdul Aziz. The area is 3,991.78 km2, and the population at the 2020 census was 120,699;[2] the official estimate as at mid 2023 was 126,754 - comprising 65,337 males and 61,417 females.[3]
On 14 December 2012, the Indonesian Parliament approved the establishment of a new East Kolaka Regency (Kolaka Timur), to be split off from the existing Kolaka Regency; the new regency - which came into effect on 11 January 2013 under Law No. 8 of 2013 - comprised nine districts of the existing Kolaka Regency; subsequently an additional three districts have been created by splitting existing districts. These are detailed below with their areas and their populations at the 2010 census[4] and the 2020 census,[5] together with the official estimates as at mid 2023.[6] The table also includes the locations of the district administrative centres, the number of administrative villages in each district (totaling 117 rural desa and 16 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 | |
|---|---|---|---|---|---|---|---|---|---|
| 74.11.10 | Aere | 305.39 | (a) | 8,471 | 8,688 | Aere | 11 | 93573 | |
| 74.11.05 | Lambandia | 211.59 | 27,893 | 19,555 | 20,459 | Penanggo Jaya | 15 (b) | 93578 | |
| 74.11.04 | Poli-Polia | 164.77 | 10,606 | 10,997 | 11,474 | Poli-Polia | 12 (b) | 93579 | |
| 74.11.12 | Dangia | 109.73 | (c) | 8,535 | 8,886 | Gunung Jaya | 12 | 93576 | |
| 74.11.03 | Ladongi | 142.34 | 23,818 | 18,333 | 18,471 | Atula | 10 (d) | 93577 | |
| 74.11.02 | Loea | 88.11 | 6,174 | 7,242 | 7,800 | Loea | 9 (e) | 93581 | |
| 74.11.01 | Tirawuta | 276.74 | 12,483 | 16,792 | 18,459 | Rate-Rate | 16 (e) | 93582 | |
| 74.11.06 | Lalolae | 60.21 | 3,542 | 4,551 | 4,906 | Lalolae | 5 (b) | 93572 | |
| 74.11.07 | Mowewe | 129.63 | 7,538 | 8,557 | 9,117 | Inebenggi | 10 (f) | 93571 | |
| 74.11.09 | Tinondo | 348.98 | 7,019 | 8,985 | 9,194 | Tinengi | 12 (b) | 93570 | |
| 74.11.08 | Uluiwoi | 284.58 | 7,242 | 5,061 | 5,125 | Sanggona | 10 (b) | 93574 | |
| 74.11.11 | Ueesi | 1,869.71 | (g) | 3,620 | 4,175 | Ueesi | 11 | 93575 | |
| Totals | 3,991.78 | 106,315 | 120,699 | 126,754 | Tirawuta | 133 |
Notes: (a) the 2010 population of Aere District is included in the figure for Lambandia District, from which it was subsequently split off.
(b) including one kelurahan. (c) the 2010 population of Dangia District is included in the figure for Ladongi District, from which it was subsequently split off.
(d) comprising 4 kelurahan and 6 desa. (e) including 2 kelurahan. (f) including 3 kelurahan.
(g) the 2010 population of Ueesi District is included in the figure for Uluiwoi District, from which it was subsequently split off.