Clay City, IN -- U.S. town in Indiana Population (2000): 1019 Housing Units (2000): 473 Land area (2000): 0.534369 sq. miles (1.384009 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 0.534369 sq. miles (1.384009 sq. km) FIPS code: 13276 Located within: Indiana (IN), FIPS 18 Location: 39.277048 N, 87.112079 W ZIP Codes (1990): 47841 Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Clay City, IN Clay City