Boone County property record offices
Assessor, Recorder, Treasurer and GIS / Mapping offices for Boone County, Illinois, with a link to each office's official website or records search.
Boone County Assessor
Phone: (815) 544-2958
Boone County Recorder
Phone: (815) 544-3103
Boone County Treasurer
Phone: (815) 544-2666
Boone County GIS / Mapping
Boone County 2026 loan limits
1 unit: conforming $832,750, FHA $541,287
2 units: conforming $1,066,250, FHA $693,050
3 units: conforming $1,288,800, FHA $837,700
4 units: conforming $1,601,750, FHA $1,041,125
Metro area: ROCKFORD, IL. Median price: $336,000