Buffalo -- U.S. County in Nebraska Population (2000): 42259 Housing Units (2000): 16830 Land area (2000): 967.994027 sq. miles (2507.092913 sq. km) Water area (2000): 7.276084 sq. miles (18.844970 sq. km) Total area (2000): 975.270111 sq. miles (2525.937883 sq. km) Located within: Nebraska (NE), FIPS 31 Location: 40.790062 N, 99.069182 W Headwords: Buffalo Buffalo, NE Buffalo County Buffalo County, NE