Rockford is located in Winnebago County, IL. The population is 151,019, making Rockford the largest city in Winnebago County and the 4th largest city in the state of Illinois.
There are 53 public schools in Rockford with an average Homefacts rating of C-. The total crime rate for Rockford is high, and there are 556 registered sex offenders residing in the city. Unemployment in Rockford is high and the median home sales price is $79,000.