61104 is zip code located in Rockford, Illinois. The population is 17,936, making 61104 the 7th largest zipcode in Rockford and the 10th largest in Winnebago County.
There are 4 public schools in 61104 with an average Homefacts rating of D. The total crime rate for Rockford is high , and there are 1 registered sex offenders residing in the zip code 61104. Unemployment in 61104 is high.