St. Joseph -- U.S. County in Michigan Population (2000): 62422 Housing Units (2000): 26503 Land area (2000): 503.721924 sq. miles (1304.633739 sq. km) Water area (2000): 17.432682 sq. miles (45.150438 sq. km) Total area (2000): 521.154606 sq. miles (1349.784177 sq. km) Located within: Michigan (MI), FIPS 26 Location: 41.897007 N, 85.528152 W Headwords: St. Joseph St. Joseph, MI St. Joseph County St. Joseph County, MI