It covers an area of 18,637 km2, comprising administrative districts on three sides of Bintuni Bay, a gulf that separates the Bird's Head Peninsula and Bomberai Peninsula which together form the main geographical constituents of the province; it had a population of 52,422 at the 2010 Census[2] and 87,083 at the 2020 Census;[3] the official estimate as at mid 2023 was 90,101 (comprising 52,005 males and 38,096 females).

The Bintuni Bay area is one of the new expansion districts in the province of West Papua which was ratified by the Plenary Session of the Indonesian House of Representatives on 12 November 2002.

Adjacent to the narrow neck of the mountain that connects the Bird's Head Peninsula with other regions in West Papua Province.

Administratively, the Bintuni Bay Regency is bordered by: The regency comprises twenty-four districts (distrik), 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 also includes the locations of the district centres, the number of administrative villages in each district (totaling 115 rural kampung and 2 urban kelurahan), and its post code.