Williamson County property record offices
Assessor, Recorder and Treasurer offices for Williamson County, Illinois, with a link to each office's official website or records search.
Williamson County Assessor
Phone: (618) 998-2189 183
Williamson County Recorder
Phone: (618) 997-1301
Williamson County Treasurer
Phone: (618) 997-1301 165
Williamson 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: MARION-HERRIN, IL. Median price: $148,000