|County||Västra Götaland County|
|• Total||14.27 km2 (5.51 sq mi)|
|Population (31 December 2010)|
|• Density||1,181/km2 (3,060/sq mi)|
|Time zone||CET (UTC+1)|
|• Summer (DST)||CEST (UTC+2)|
The river of Säveån runs through Lerum municipality. 5 kilometers of it is surrounded by the nature reserve Säveåns Naturreservat, where bridges dating back as far as the 18th century as well as a variety of animal life and beautiful nature can be found.
Lerum Train Crash 
Lerum hit the world's news bulletins on November 16, 1987, when two Intercity trains collided just outside the local station, killing 9 and injuring 140.
A control cable to the trailroad switches had been reconnected wrongly after being dug off by accident. So when the traffic was allowed to pass the station the Gothenburg bound train was switched over to the opposite track where an outbound train was arriving. An off duty trainmaster reading the paper in one of the locomotive heard the train driver say "Helvete nu smäller det" (roughly translated: "Hell this´ll be a crash"). He managed to open the side door and leaped out, the trains collided when he was still in the air and despite doing this at 100 km/h he survived with just a broken foot.
The involved locomotives were RC4 1292 and 1300, they were scrapped on the spot.
There are several schools in Lerum. (incomplete list)
- Lerums gymnasium
The following sports clubs are located in Lerum:
|Wikimedia Commons has media related to: Lerum|
- "Tätorternas landareal, folkmängd och invånare per km2 2005 och 2010" (in Swedish). Statistics Sweden. 14 December 2011. Archived from the original on 10 January 2012. Retrieved 10 January 2012.
- Swedish train crash kills 9
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