10578 -- U.S. ZIP code Municipality (1990): PURDYS, New York All ZIPs for this municipality (1990): 10578 Population (2000): 661 Housing Units (2000): 237 Land area (2000): 1.985214 sq. miles (5.141680 sq. km) Water area (2000): 0.003893 sq. miles (0.010082 sq. km) Total area (2000): 1.989107 sq. miles (5.151762 sq. km) Located within: New York (NY) Location: 41.325200 N, 73.669068 W