|• Total||670.22 km2 (258.77 sq mi)|
|• Land||636.71 km2 (245.84 sq mi)|
|• Water||33.51 km2 (12.94 sq mi)|
|Area as of January 1, 2014.|
|Population (December 31, 2013)|
|• Density||23/km2 (59/sq mi)|
|Time zone||CET (UTC+1)|
|• Summer (DST)||CEST (UTC+2)|
|ISO 3166 code||SE|
The present municipality was created in 1971 when the market town (köping) of Hallsberg was amalgamated with adjacent municipalities. A series of amalgamations had taken place in the area in 1952, 1963 and 1967.
Hallsberg's three twin towns with the year of its establishing:
- "Statistiska centralbyrån, Kommunarealer den 1 januari 2014" (Microsoft Excel) (in Swedish). Statistics Sweden. Retrieved 2014-04-18.
- "SCB, Befolkningsstatistik 31 December 2013" (in Swedish). Statistics Sweden. Retrieved April 2014.
- Hallsberg Municipality - Official site