Ladoga, IN -- U.S. town in Indiana Population (2000): 1047 Housing Units (2000): 421 Land area (2000): 0.502051 sq. miles (1.300305 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 0.502051 sq. miles (1.300305 sq. km) FIPS code: 40698 Located within: Indiana (IN), FIPS 18 Location: 39.915223 N, 86.799271 W ZIP Codes (1990): 47954 Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Ladoga, IN Ladoga