What is "buffalo grove"

Population (2000): 42909
Housing Units (2000): 16166
Land area (2000): 9.194400 sq. miles (23.813385 sq. km)
Water area (2000): 0.019838 sq. miles (0.051379 sq. km)
Total area (2000): 9.214238 sq. miles (23.864764 sq. km)
FIPS code: 09447
Located within: Illinois (IL), FIPS 17
Location: 42.166332 N, 87.963391 W
ZIP Codes (1990): 60089
Note: some ZIP codes may be omitted esp. for suburbs.
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