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Jefferson County, IL
100 S 10Th St
County Courthouse
Mount Vernon, IL 62864-4012
Phone: (618)244-8000
Fax: (618)244-1111

NACo NonMember

County Populations
  1980     1990     2000     2005  
 35,667  37,020  40,045  40,434

County Seat: Mount Vernon
Year Organized: 1819
Square Miles: 571
Size of Board: 1
MSA: Mount Vernon, IL Micropolitan Statistical Area
  • Places in Jefferson County
  • Census Bureau Quick Facts
  • FEDSTATS
  • Elected County Officials
    Name Position
    Ted Buck Sr. County Board Chairman
    Jeff Bradley State's Attorney
    Eddie Marks Coroner
    Bryan Cross Reg. Superintendent of Schools
    Roger Mulch Sheriff
    Debbie Marlow Treasurer
    Connie Simmons County Clerk/Recorder
    John Scott Circuit Clerk

    Please contact the county to get the most accurate listing.
    To report any updates, deletions or additions, contact Database Updates or send a fax to NACo, Attn: Database Updates (202)393-2630.

    Mailing list information on county officials is made available for sale by NACo. To find out more, click on the link below.

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