Asahan Regency

Asahan Regency is a regency in North Sumatra Province of Indonesia. Following the creation of the new Batubara Regency (which was carved out of Asahan Regency on 15 June 2007), the regency now covers an area of 3,732.97 square kilometres; it had a population of 668,272 according to the 2010 census and 769,960 in the 2020 Census; the official estimate as of mid-2023 was 802,563 (comprising 405,617 males and 396,946 females). Its administrative centre is now the large town of Kisaran. The Regency surrounds but now does not include the city of Tanjungbalai which was its capital until created an independent city in 1984. The Asahan Sultanate was located in the region.

Administrative divisions
The regency is divided administratively into twenty-five Districts (kecamatan), tabulated below with their areas and their populations at the 2010 Census and the 2020 Census, together with the official estimates as of mid-2023. The table also includes the locations of the district administrative centres, the number of administrative villages in each district (totaling 177 rural desa and 27 urban kelurahan - of which 25 are in the town of Kisaran), and its postal code.

Note: (a) including one kelurahan (Aek Loba Pekan). (b) Tanjung Balai District is not part of Tanjungbalai city, but lies between the city and the coast. (c) including one kelurahan (Binjai Serbangan). (d) comprises 13 kelurahan - see under Kisaran. (e) comprises 12 kelurahan - see under Kisaran.