12549 -- U.S. ZIP code Municipality (1990): MONTGOMERY, New York All ZIPs for this municipality (1990): 12549 Population (2000): 8670 Housing Units (2000): 3038 Land area (2000): 40.762463 sq. miles (105.574291 sq. km) Water area (2000): 0.098961 sq. miles (0.256308 sq. km) Total area (2000): 40.861424 sq. miles (105.830599 sq. km) Located within: New York (NY) Location: 41.520396 N, 74.247126 W