East Kotawaringin Regency
East Kotawaringin Regency () is one of the thirteen regencies which comprise the Central Kalimantan Province on the island of Kalimantan (Borneo), Indonesia. The population of East Kotawaringin Regency was 374,175 at the 2010 Census, and 428,900 at the 2020 Census. The town of Sampit is the capital of East Kotawaringin Regency. Administrative Districts. At the 2010 Census, East Kotawaringin Regency consisted of fifteen districts ("kecamatan"), but two more districts (Tualan Hulu and Telaga Antang) were subsequently established by the splitting of existing districts. The seventeen districts are tabulated below with their areas and population totals from the  2010 Census and the 2020 Census. The table also includes the number of administrative villages (rural "desa" and urban "kelurahan") in each district, and its postal codes. Notes: (a) except for the village of Mentaya Seberang, which has a post code of 74324. (b) the 2010 population of Tualan Hulu Disrict is included in the figures for the districts from which it was cut out. (c) the 2010 population of Telaga Antang District is included in the figure for Antang Kalang District. (d) except for the village of Buana Mustika, which has a post code of 74356. East Kotawaringin Regency