House located at 5403 Blackthorn Rockford, Illinois 61107. It has 4 beds, 3 bathrooms, and is 3490 square feet. The property was built in 1978. 5403 Blackthorn Rockford, Illinois 61107 is in the Rockford neighborhood. Rockford , Boone County , and Out of Area Winnebago Cnty are nearby neighbourhoods.