10598 -- U.S. ZIP code Municipality (1990): YORKTOWN HEIGHTS, New York All ZIPs for this municipality (1990): 10598 Population (2000): 29368 Housing Units (2000): 10439 Land area (2000): 25.701245 sq. miles (66.565916 sq. km) Water area (2000): 0.306038 sq. miles (0.792635 sq. km) Total area (2000): 26.007283 sq. miles (67.358551 sq. km) Located within: New York (NY) Location: 41.296874 N, 73.789340 W