'Rochester, IL' definitions:

Rochester, IL -- U.S. village in Illinois

From: Gazetteer 2000
Name :
Rochester, IL -- U.S. village in Illinois
Population (2000) :
2893
Housing Units (2000) :
1099
Land area (2000) :
2.107148 sq. miles (5.457489 sq. km)
Water area (2000) :
0.011061 sq. miles (0.028649 sq. km)
Total area (2000) :
2.118209 sq. miles (5.486138 sq. km)
FIPS code :
64759
Located within :
Illinois (IL), FIPS 17
Location :
39.750625 N, 89.541587 W
Note :
some ZIP codes may be omitted esp. for suburbs.