Watonwan -- U.S. County in Minnesota Population (2000): 11876 Housing Units (2000): 5036 Land area (2000): 434.514006 sq. miles (1125.386061 sq. km) Water area (2000): 5.403101 sq. miles (13.993968 sq. km) Total area (2000): 439.917107 sq. miles (1139.380029 sq. km) Located within: Minnesota (MN), FIPS 27 Location: 43.984607 N, 94.610969 W Headwords: Watonwan Watonwan, MN Watonwan County Watonwan County, MN