12815 -- U.S. ZIP code Municipality (1990): BRANT LAKE, New York All ZIPs for this municipality (1990): 12815 Population (2000): 955 Housing Units (2000): 1002 Land area (2000): 42.649706 sq. miles (110.462227 sq. km) Water area (2000): 2.861639 sq. miles (7.411610 sq. km) Total area (2000): 45.511345 sq. miles (117.873837 sq. km) Located within: New York (NY) Location: 43.703484 N, 73.711233 W