13439 -- U.S. ZIP code Municipality (1990): RICHFIELD SPRING, New York All ZIPs for this municipality (1990): 13439 Population (2000): 3893 Housing Units (2000): 2116 Land area (2000): 81.405851 sq. miles (210.840176 sq. km) Water area (2000): 3.285424 sq. miles (8.509209 sq. km) Total area (2000): 84.691275 sq. miles (219.349385 sq. km) Located within: New York (NY) Location: 42.852372 N, 74.991213 W