What is "great neck estates"

Population (2000): 2756
Housing Units (2000): 944
Land area (2000): 0.769557 sq. miles (1.993143 sq. km)
Water area (2000): 0.036468 sq. miles (0.094452 sq. km)
Total area (2000): 0.806025 sq. miles (2.087595 sq. km)
FIPS code: 30191
Located within: New York (NY), FIPS 36
Location: 40.787121 N, 73.738126 W
ZIP Codes (1990):
Note: some ZIP codes may be omitted esp. for suburbs.
Headwords: