10546 -- U.S. ZIP code Municipality (1990): MILLWOOD, New York All ZIPs for this municipality (1990): 10546 Population (2000): 1224 Housing Units (2000): 432 Land area (2000): 2.367026 sq. miles (6.130568 sq. km) Water area (2000): 0.003908 sq. miles (0.010121 sq. km) Total area (2000): 2.370934 sq. miles (6.140689 sq. km) Located within: New York (NY) Location: 41.199502 N, 73.792690 W