Riverdale, NE -- U.S. village in Nebraska Population (2000): 213 Housing Units (2000): 84 Land area (2000): 0.264256 sq. miles (0.684420 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 0.264256 sq. miles (0.684420 sq. km) FIPS code: 41515 Located within: Nebraska (NE), FIPS 31 Location: 40.784503 N, 99.161735 W ZIP Codes (1990): 68870 Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Riverdale, NE Riverdale