Rex, NC -- U.S. Census Designated Place in North Carolina Population (2000): 55 Housing Units (2000): 17 Land area (2000): 0.736317 sq. miles (1.907053 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 0.736317 sq. miles (1.907053 sq. km) FIPS code: 56100 Located within: North Carolina (NC), FIPS 37 Location: 34.848018 N, 79.042034 W ZIP Codes (1990): Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Rex, NC Rex