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This page lists public record sources in Jefferson County, Illinois. Additional resources can be found on our Illinois State Public Records page, on city pages, and on topic pages.
Jefferson County, Illinois - Free Public Records Directory
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County InfoJefferson County, Illinois Home Page
General information about Jefferson County
Area: 571 sq. miles
County Seat: Mount Vernon
Area Code(s): 618
Time Zone: Central
Free SearchIllinois Court Records and other Resources
Links to state and local court records, general Illinois court information, directory of courts, and online resources for courts in Illinois.
Free SearchCourt Directory and Court Records Info
Directory of court locations in Jefferson County, Illinois. Includes local links to searching court records, dockets, legal research, self help, and more.
Contact InfoClerk, Recorder, Marriage Licenses, Birth, Death and Marriage Records and Voter Information
Jefferson County Clerk
100 South 10th St., Room 105, Mount Vernon, IL 62864
Free SearchJefferson County census information summary
Jefferson County statistics for population, ethnicity, housing, geography and businesses. From the U.S. Census Bureau.
Contact InfoDelinquent Taxes
Jefferson County Treasurer
100 S 10th St, Room 100, Mt. Vernon, IL 62864
Phone (618) 244-8010 Ext. 8
Free SearchTax Deed Auctions
View Jefferson County tax deed auctions, including results of prior sales.
Free SearchC.E. Brehm Memorial Public Library District Resources
Search library resources including genealogy records. A valid library card is required in order to access certain resources.
Free SearchGenealogy Records
Search Jefferson County genealogy records such as cemeteries, census records, vbirth, death and marriage records, obituaries, and more.
Free SearchInmate Records
Search Illinois Department of Corrections inmate records.
Free SearchGovernment Jobs
Search Illinois state government jobs by category, agency or keyword.
Free SearchSex Offender Records
Search Jefferson County sex offender records.
Free SearchSex Offenders
Search Jefferson County registered sex offenders by address including email alerts.
Free SearchFloodplain Maps
Search Jefferson County floodplain maps by address.
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