Ketapang Regency occupies an area of 31,588 km2, and at the census in 2010 it had 427,460 inhabitants following the splitting off of five districts in the north-west of the regency on 2 January 2007 to form the new North Kayong Regency;[2] the 2020 census revealed a growth in population to 570,657 over the intervening decade;[3] the official estimate as at mid 2023 was 592,521 (comprising 307,931 males and 284,590 females).

When Ketapang Regency was originally created, it consists into the districts of Kendawangan, Manis Mata, Marau, Singkup, Tumbang Titi, Matan Hilir, Nanga Tayap, Sandai, Simpang Hilir, Simpang Hulu, Sukadana and Maya Karimata Islands.

Following the splitting off of the five districts to form the North Kayong Regency in January 2007, the Ketapang Regency now consists of twenty districts (kecamatan), tabulated below with their areas and their populations at the 2010 census[2] and the 2020 census;[3] together with the official estimates as at mid 2023.

[1] The table includes the locations of the district administrative centres, the number of administrative villages in each district (totaling 253 rural desa and 9 urban kelurahan), and its post code.

(c) including five kelurahan - Kantor, Tengah, Mulia Baru, Sampit and Sukaharja.