'Janesville, IA' definitions:

Janesville, IA -- U.S. city in Iowa

From: Gazetteer 2000
Name :
Janesville, IA -- U.S. city in Iowa
Population (2000) :
829
Housing Units (2000) :
359
Land area (2000) :
1.448151 sq. miles (3.750695 sq. km)
Water area (2000) :
0.044942 sq. miles (0.116398 sq. km)
Total area (2000) :
1.493093 sq. miles (3.867093 sq. km)
FIPS code :
39405
Located within :
Iowa (IA), FIPS 19
Location :
42.646008 N, 92.462663 W
ZIP Codes (1990) :
50647
Note :
some ZIP codes may be omitted esp. for suburbs.