What is "vernon hills"

Population (2000): 20120
Housing Units (2000): 7813
Land area (2000): 7.429012 sq. miles (19.241053 sq. km)
Water area (2000): 0.190273 sq. miles (0.492805 sq. km)
Total area (2000): 7.619285 sq. miles (19.733858 sq. km)
FIPS code: 77694
Located within: Illinois (IL), FIPS 17
Location: 42.231123 N, 87.969053 W
ZIP Codes (1990): 60061
Note: some ZIP codes may be omitted esp. for suburbs.
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