|• Mayor (2011)||Anders Ostensen (Labor Party)|
|• Total||83 km2 (32 sq mi)|
|• Land||82 km2 (32 sq mi)|
|• Rank||#396 in Norway|
|• Rank||#192 in Norway|
|• Density||60/km2 (200/sq mi)|
|• Change (10 years)||+31.6%|
|• Norwegian form||Bokmål|
|Time zone||UTC+01:00 (CET)|
|• Summer (DST)||UTC+02:00 (CEST)|
|ISO 3166 code||NO-3032|
Data from Statistics Norway
The municipality (originally the parish) is named after the old Gjerdrum farm (Norse Gerðarvin). The first element is the genitive of a river name Gerð and the last element is vin 'meadow, pasture'. The river name is derived from the Norse word garðr meaning 'fence' and so the meaning is 'the river whose function is a fence (and/or as a border)'.
The coat of arms is from modern times. They were granted in 1993. The arms show a traditional Norwegian form of roundpole fence. The arms are also canting because the name of the municipality refers to a fence.
Gjerdrum was established as a municipality on 1 January 1838 (see formannskapsdistrikt).
On 30 December 2020 a quick clay landslide occurred in the village of Ask within Gjerdum municipality. 10 people died. The slide measured 700 by 300 metres (2,300 by 980 ft), injured 10 people (including one seriously), left 10 unaccounted for and led to 1,000 being evacuated from the village, with several homes having been destroyed in the slide.
Gjerdrum lies on the southwestern part of the Romerike Plain (Romerikssletta); this eastern part of the municipality lies at a low altitude and is covered by significant layers of clay that was deposited, towards the end of the previous ice age.
In 2021, 1258 inhabitants were immigrants or Norwegian-born to immigrant parents. 264 inhabitants had Polish parents and/or were Polish (themselves); 173 had Lithuanian parents and/or were Lithuanian.
|Trinidad and Tobago||3|
The local sports team is Gjerdrum IL.
River Leira by Kråkfoss waterfalls