It occupies an area of 13,925.31 km2 in the Baliem Valley, situated in the central highlands of the province.

As created, Jayawijaya Regency covered an area coincident with the whole of what in 2022 became Highland Papua Province.

All eight regencies were brought together again in 2022 in the new province of Highland Papua.

During the following ten years, the number of districts was raised to forty by the splitting of existing districts, and these are all shown below with their current 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 administrative centres, the number of administrative villages in each district (totaling 328 rural kampung and 4 urban kelurahan), and its postcode.