|County||Västra Götaland County|
|• Total||308.38 km2 (119.07 sq mi)|
|• Land||258.61 km2 (99.85 sq mi)|
|• Water||49.77 km2 (19.22 sq mi)|
|Area as of January 1, 2014.|
|Population (June 30, 2017)|
|• Density||130/km2 (340/sq mi)|
|Time zone||CET (UTC+1)|
|• Summer (DST)||CEST (UTC+2)|
|ISO 3166 code||SE|
|Density is calculated using land area only.|
In 1969 the municipality got its present size when "old" Lerum was amalgamated with Skallsjö and Stora Lundby.
In 2007, Lerum Municipality launched a new logotype to be used instead of its official municipal coat of arms which features the head of an ox and three oak leaves. Municipal officials and PR staff felt the coat "outdated". Although no longer used, the coat of arms still has official status. The new logotype features a multi-coloured weaving pattern.
- "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.
- Lerum Municipality: Lerums logotyp, accessed on February 16, 2009 (in Swedish)