Illinois Regional Archives Depository (IRAD) System Illinois State Archives

Johnson County

Johnson County Courthouse Contact Information
Johnson County Courthouse
400 Court St.
Vienna, IL 62995
618-658-3611 – County Clerk
618-658-4751 – Circuit Clerk
618-658-3611 – Recorder

IRAD—c/o Records Management
Morris Library, Mail Code 6808
Southern Illinois University
1835 University Press Dr.
Carbondale, IL 62901-6808


Origin of the name of the county

Present area, or parts of it, formerly included in

County Seats

History of county governing board

Township Government

Township Names (under 1870 township organization

Johnson County’s townships became precincts after the abandonment of township government in 1876.

Township Map

Johnson County Township Map

Pertinent Databases