Janesville is located in Black Hawk County, IA. The population is 986.
There are 2 public schools in Janesville with an average Homefacts rating of B. The total crime rate for Janesville is moderate , and there are 4 registered sex offenders residing in the city. Unemployment in Janesville is moderate and the median home sales price is $0. Detailed and up-to-date Janesville property reports are available for any property address.
Cities near Janesville include Jackson Township, Washington Township and Washington Township.