Clay Center, NE -- U.S. city in Nebraska Population (2000): 861 Housing Units (2000): 373 Land area (2000): 0.708456 sq. miles (1.834892 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 0.708456 sq. miles (1.834892 sq. km) FIPS code: 09375 Located within: Nebraska (NE), FIPS 31 Location: 40.522291 N, 98.055076 W ZIP Codes (1990): 68933 Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Clay Center, NE Clay Center