11560 -- U.S. ZIP code Municipality (1990): LOCUST VALLEY, New York All ZIPs for this municipality (1990): 11560 Population (2000): 6815 Housing Units (2000): 2560 Land area (2000): 7.789720 sq. miles (20.175281 sq. km) Water area (2000): 0.057525 sq. miles (0.148988 sq. km) Total area (2000): 7.847245 sq. miles (20.324269 sq. km) Located within: New York (NY) Location: 40.881957 N, 73.594176 W