In the east of the regency, Baktiraja District stretches along a short part of the southern shore of Lake Toba in North Sumatra.

The regency covers an area of 2,502.71 square kilometres (966.30 sq mi), and it had a population of 171,650 at the 2010 census[2] and 197,751 at the 2020 census;[3] the official estimate as at mid 2023 was 204,700.

The regency is divided administratively into ten 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 2021.

[4] The table also includes the locations of the district administrative centres, the number of administrative villages (desa and kelurahan) in each district and its post code.

This North Sumatra location article is a stub.