'Riverhead, NY' definitions:

Riverhead, NY -- U.S. Census Designated Place in New York

From: Gazetteer 2000
Name :
Riverhead, NY -- U.S. Census Designated Place in New York
Population (2000) :
10513
Housing Units (2000) :
4167
Land area (2000) :
15.094924 sq. miles (39.095672 sq. km)
Water area (2000) :
0.355498 sq. miles (0.920736 sq. km)
Total area (2000) :
15.450422 sq. miles (40.016408 sq. km)
FIPS code :
61973
Located within :
New York (NY), FIPS 36
Location :
40.928363 N, 72.662192 W
ZIP Codes (1990) :
11901
Note :
some ZIP codes may be omitted esp. for suburbs.