 With a land area of , it had a population density of in 2016.Clear Hills County's 2012 municipal census counted a population of 2,829, a 4.7% decrease over its 2008 municipal census population of 2,970.In the 2011 Census, Clear Hills County had a population of 2,801 living in 893 of its 938 total dwellings, a 3.2% change from its 2006 population of 2,714.