Plattsmouth, NE -- U.S. city in Nebraska Population (2000): 6887 Housing Units (2000): 2805 Land area (2000): 2.891741 sq. miles (7.489574 sq. km) Water area (2000): 0.006265 sq. miles (0.016225 sq. km) Total area (2000): 2.898006 sq. miles (7.505799 sq. km) FIPS code: 39345 Located within: Nebraska (NE), FIPS 31 Location: 41.008699 N, 95.891643 W ZIP Codes (1990): 68048 Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Plattsmouth, NE Plattsmouth