12492 -- U.S. ZIP code Municipality (1990): WEST KILL, New York All ZIPs for this municipality (1990): 12492 Population (2000): 281 Housing Units (2000): 302 Land area (2000): 17.698176 sq. miles (45.838064 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 17.698176 sq. miles (45.838064 sq. km) Located within: New York (NY) Location: 42.209414 N, 74.347672 W