House located at 3111 Sunnyside Rockford, Illinois 61114. It has 4 beds, 2 bathrooms, and is 1605 square feet. The property was built in 1962. 3111 Sunnyside Rockford, Illinois 61114 is in the Rockford neighborhood. Rockford , Boone County , and Out of Area Winnebago Cnty are nearby neighbourhoods.