What is "crest hill"

Population (2000): 13329
Housing Units (2000): 4808
Land area (2000): 7.161346 sq. miles (18.547800 sq. km)
Water area (2000): 0.106031 sq. miles (0.274618 sq. km)
Total area (2000): 7.267377 sq. miles (18.822418 sq. km)
FIPS code: 17458
Located within: Illinois (IL), FIPS 17
Location: 41.564526 N, 88.108489 W
ZIP Codes (1990):
Note: some ZIP codes may be omitted esp. for suburbs.
Headwords: