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Washington County, IL
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Established January 2, 1818
Parent County = St. Clair County, Illinois
Washington County was formed including what is now Clinton County; on December 28, 1824 Clinton County was separated, leaving Washington County as it is now
 
County Seat = Nashville
Latitude = 36º 58' N to 42º 30' N
Longitude = 87º 30' W to 91º 30' W


County Clerk & Recorder
101 E. St. Louis St.
Nashville, IL 72263
618-327-4800


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Washington County, IL Archives

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    Research Links

    State of Illinois Archives

    Surrounding Counties

    • Clinton County Franklin County Jefferson County
    Madison County Marion County Perry County
    Randolph County St. Clair County  

    For corrections or additions, please contact: State Coordinator

    Washington County, IL Genealogy
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