Jefferson County property record offices
Assessor, Recorder, Treasurer and GIS / Mapping offices for Jefferson County, Illinois, with a link to each office's official website or records search.
Jefferson County Assessor
No online search. This office has no public records search online — this link goes to the office page. Records are available directly from the office.
Phone: (618) 244-8016
Jefferson County Recorder
Phone: (618) 244-8020
Jefferson County Treasurer
Phone: (618) 244-8010
Jefferson County GIS / Mapping
Jefferson 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: MOUNT VERNON, IL. Median price: $108,000