ILLINOIS STATE ARCHIVES
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Union County
Contact Information309 W. Market
P.O. Box H
Jonesboro, IL 62952
618-833-5711 — County Clerk
618-833-5913 — Circuit Clerk
618-833-5711 — Recorder
c/o Special Collections
Morris Library–6632
Southern Illinois University
Carbondale, IL 62901
618-453-3040
Established
January 2, 1818 (Territorial Laws, 1817–1818, p. 15)
Origin of the name of the county
Named for the federal union of the American States.
Present area, or parts of it, formerly included in
1812–1818 — Johnson
1795–1812 — Randolph
1790–1795 — St. Clair
County Seats
1818– — Jonesboro
History of county governing board
1818–1819 — Justices’ Court
1819–1849 — County Commissioners’ Court
1849–1873 — County Court
1873– — Board of County Commissioners
Township Government
Union county has never adopted township form of government. The county has been divided into precincts.
Precinct Names
Alto Pass
Anna
Cobden
Dongola
Jonesboro
Lick Creek
Mill Creek
Misenheimer
Preston
Reynolds
Rich
Stokes
Union
West Saratoga
County Map

Pertinent Databases
Federal Township Plats of Illinois
Illinois Public Domain Land Tract Sales Database
Illinois Statewide Death Index, 1916–1950
Illinois Statewide Marriage Index
Local Governmental Records Database
Name Index to Illinois Local Governments