 Otherwise the terrain's highest point is along the western part of the north boundary line, at 1,083' (330m) ASL.The county has a total area of , of which is land and (5.2%) is water.In recent years, average temperatures in the county seat of Anoka have ranged from a low of in January to a high of in July, although a record low of was recorded in January 2019 and a record high of was recorded in July 1988.