Sidney, IN -- U.S. town in Indiana Population (2000): 168 Housing Units (2000): 69 Land area (2000): 0.130111 sq. miles (0.336985 sq. km) Water area (2000): 0.005001 sq. miles (0.012953 sq. km) Total area (2000): 0.135112 sq. miles (0.349938 sq. km) FIPS code: 69678 Located within: Indiana (IN), FIPS 18 Location: 41.105140 N, 85.743074 W ZIP Codes (1990): Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Sidney, IN Sidney