13856 -- U.S. ZIP code Municipality (1990): WALTON, New York All ZIPs for this municipality (1990): 13856 Population (2000): 6568 Housing Units (2000): 3687 Land area (2000): 185.176166 sq. miles (479.604047 sq. km) Water area (2000): 0.327466 sq. miles (0.848134 sq. km) Total area (2000): 185.503632 sq. miles (480.452181 sq. km) Located within: New York (NY) Location: 42.182237 N, 75.146278 W