Laconia, IN -- U.S. town in Indiana Population (2000): 29 Housing Units (2000): 18 Land area (2000): 0.049723 sq. miles (0.128781 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 0.049723 sq. miles (0.128781 sq. km) FIPS code: 40644 Located within: Indiana (IN), FIPS 18 Location: 38.032174 N, 86.085271 W ZIP Codes (1990): 47135 Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Laconia, IN Laconia