Neosho Falls, KS -- U.S. city in Kansas Population (2000): 179 Housing Units (2000): 90 Land area (2000): 0.545631 sq. miles (1.413177 sq. km) Water area (2000): 0.001818 sq. miles (0.004709 sq. km) Total area (2000): 0.547449 sq. miles (1.417886 sq. km) FIPS code: 49825 Located within: Kansas (KS), FIPS 20 Location: 38.005865 N, 95.556708 W ZIP Codes (1990): 66758 Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Neosho Falls, KS Neosho Falls