Knightstown, IN -- U.S. town in Indiana Population (2000): 2148 Housing Units (2000): 979 Land area (2000): 0.709806 sq. miles (1.838390 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 0.709806 sq. miles (1.838390 sq. km) FIPS code: 40266 Located within: Indiana (IN), FIPS 18 Location: 39.796734 N, 85.528334 W ZIP Codes (1990): 46148 Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Knightstown, IN Knightstown