Mount Etna, IN -- U.S. town in Indiana Population (2000): 110 Housing Units (2000): 46 Land area (2000): 0.081903 sq. miles (0.212128 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 0.081903 sq. miles (0.212128 sq. km) FIPS code: 51408 Located within: Indiana (IN), FIPS 18 Location: 40.741794 N, 85.561263 W ZIP Codes (1990): Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Mount Etna, IN Mount Etna