12508 -- U.S. ZIP code Municipality (1990): BEACON, New York All ZIPs for this municipality (1990): 12508 Population (2000): 19487 Housing Units (2000): 6965 Land area (2000): 15.225789 sq. miles (39.434610 sq. km) Water area (2000): 0.041697 sq. miles (0.107995 sq. km) Total area (2000): 15.267486 sq. miles (39.542605 sq. km) Located within: New York (NY) Location: 41.505993 N, 73.961981 W