Antrim -- U.S. County in Michigan Population (2000): 23110 Housing Units (2000): 15090 Land area (2000): 476.937417 sq. miles (1235.262187 sq. km) Water area (2000): 124.967018 sq. miles (323.663078 sq. km) Total area (2000): 601.904435 sq. miles (1558.925265 sq. km) Located within: Michigan (MI), FIPS 26 Location: 45.005956 N, 85.176923 W Headwords: Antrim Antrim, MI Antrim County Antrim County, MI