Humbang Hasundutan Regency

Humbang Hasundutan Regency is a landlocked regency in North Sumatra province of Indonesia. 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 km2, and it had a population of 171,650 at the 2010 census and 197,751 at the 2020 census; the official estimate as at mid 2023 was 204,700. Its seat is the town of Dolok Sanggul. To the north is Samosir Regency and Pakpak Bharat Regency, to the east is North Tapanuli Regency, and to the west and south is Central Tapanuli Regency, and beyond the latter the Indian Ocean.

Administrative districts
The regency is divided administratively into ten districts (kecamatan), tabulated below with their areas and their populations at the 2010 census and the 2020 census, together with the official estimates as at mid 2021. 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.

Note: (a) including Simamora Island (Pulau Simamora) in Lake Toba.