11548 -- U.S. ZIP code Municipality (1990): GREENVALE, New York All ZIPs for this municipality (1990): 11548 Population (2000): 2514 Housing Units (2000): 469 Land area (2000): 0.692760 sq. miles (1.794241 sq. km) Water area (2000): 0.001266 sq. miles (0.003279 sq. km) Total area (2000): 0.694026 sq. miles (1.797520 sq. km) Located within: New York (NY) Location: 40.813187 N, 73.625618 W