The new Banggai Sea Regency covers a land area of 725.67 km2 (and an associated marine area of 12,156.78 km2), and the districts now comprising the new Regency had a population of 62,183 at the 2010 Census[3] and 70,435 at the 2020 Census;[4] the official population estimate at mid-2023 was 73,100 (comprising 36,900 males and 36,200 females).

[1] The new Banggai Sea Regency is composed of seven districts (kecamatan), tabulated below with their areas and their 2010 Census[3] and 2020 Census populations,[4] together with the official estimates as at mid 2023.

[1] The table also includes the location of the district headquarters, the number of administrative villages in each district (in total, 63 rural desa and 3 urban kelurahan), and its postal codes.

Notes: (a) including three kelurahan - Dodung, Lompio, and Tano Bonunungan.

Banggai has a tropical rainforest climate (Af) with moderate rainfall from September to December and heavy to very heavy rainfall from January to August.