|County||Västra Götaland County|
|• Total||584.47 km2 (225.67 sq mi)|
|• Land||297.04 km2 (114.69 sq mi)|
|• Water||287.43 km2 (110.98 sq mi)|
|Area as of January 1, 2014.|
|Population (June 30, 2017)|
|• Density||16/km2 (40/sq mi)|
|Time zone||CET (UTC+1)|
|• Summer (DST)||CEST (UTC+2)|
|ISO 3166 code||SE|
The municipality was created in 1971, when the City of Hjo was amalgamated with a part of the rural municipality Värsås. In 1974 parts of Fröjered and Fågelås were added.
Geographically it is situated by the western shore of Lake Vättern. The large and fish-rich waters have been the main influence on the industry. The largest rivulet intersecting the municipality from Vättern is the Hjo River. Parts of it have been made a nature reserve. Partly this is due to the salmon (Salmo trutta) and the grayling (Thymallus thymallus) that occur natural in the rivulet, but have had hard times due to dams.
- "Statistiska centralbyrån, Kommunarealer den 1 januari 2014" (Microsoft Excel) (in Swedish). Statistics Sweden. Retrieved 2014-04-18.
- "Folkmängd i riket, län och kommuner 30 juni 2017" (in Swedish). Statistics Sweden. August 18, 2017. Retrieved August 21, 2017.