11965 -- U.S. ZIP code Municipality (1990): SHELTER ISLAND H, New York All ZIPs for this municipality (1990): 11965 Population (2000): 1080 Housing Units (2000): 1375 Land area (2000): 5.416545 sq. miles (14.028787 sq. km) Water area (2000): 0.055840 sq. miles (0.144626 sq. km) Total area (2000): 5.472385 sq. miles (14.173413 sq. km) Located within: New York (NY) Location: 41.078150 N, 72.350936 W