10709 -- U.S. ZIP code Municipality (1990): EASTCHESTER, New York All ZIPs for this municipality (1990): 10709 Population (2000): 9093 Housing Units (2000): 3765 Land area (2000): 1.540764 sq. miles (3.990561 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 1.540764 sq. miles (3.990561 sq. km) Located within: New York (NY) Location: 40.953849 N, 73.811434 W