St. Joseph -- U.S. County in Indiana Population (2000): 265559 Housing Units (2000): 107013 Land area (2000): 457.340650 sq. miles (1184.506795 sq. km) Water area (2000): 3.631001 sq. miles (9.404250 sq. km) Total area (2000): 460.971651 sq. miles (1193.911045 sq. km) Located within: Indiana (IN), FIPS 18 Location: 41.664783 N, 86.241933 W Headwords: St. Joseph St. Joseph, IN St. Joseph County St. Joseph County, IN