14150 -- U.S. ZIP code Municipality (1990): TONAWANDA, New York All ZIPs for this municipality (1990): 14150 Population (2000): 44535 Housing Units (2000): 19624 Land area (2000): 15.140286 sq. miles (39.213158 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 15.140286 sq. miles (39.213158 sq. km) Located within: New York (NY) Location: 43.001907 N, 78.863108 W