The name Aurskog comes from the old Ør farm (Old Norse: Aurr which means "gravel"). The last element is skog (Old Norse: skógr which means "wood" therefore the meaning of the full name is "the woods around the farm Aurr". Prior to 1918, the name was written "Urskog".
The name Høland is an old district name. The first element is høy which means "hay" and the last element is land which means "land".
The coat-of-arms is from modern times. They were granted on 4 February 1983. The arms show a black European crayfish (Astacus astacus) on a gold background. It was derived from an older logo of the municipality. The logo showed a typical landscape of the area, a lake surrounded by woods and a crayfish in the lake. To place the whole composition in a shield to create the arms was not allowed according to Norwegian heraldic rules, so the crayfish was chosen as a symbol.
It is the biggest municipality in Akershus, covering 967 square kilometres (373.4 sq mi). Main villages are Aurskog and Bjørkelangen, of which the latter one is the administrative center. Forests cover much of the area, but there is very good farmland as well. The rivers of Haldenvassdraget and Hølandselva run through the district.