What is "east nassau"

Population (2000): 571
Housing Units (2000): 255
Land area (2000): 4.899006 sq. miles (12.688368 sq. km)
Water area (2000): 0.001694 sq. miles (0.004388 sq. km)
Total area (2000): 4.900700 sq. miles (12.692756 sq. km)
FIPS code: 22557
Located within: New York (NY), FIPS 36
Location: 42.528830 N, 73.515997 W
ZIP Codes (1990): 12062
Note: some ZIP codes may be omitted esp. for suburbs.
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