What is "riverwoods"

Population (2000): 3843
Housing Units (2000): 1281
Land area (2000): 3.989303 sq. miles (10.332247 sq. km)
Water area (2000): 0.010859 sq. miles (0.028125 sq. km)
Total area (2000): 4.000162 sq. miles (10.360372 sq. km)
FIPS code: 64538
Located within: Illinois (IL), FIPS 17
Location: 42.171075 N, 87.895943 W
ZIP Codes (1990):
Note: some ZIP codes may be omitted esp. for suburbs.
Headwords: