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Williamson County
Contact InformationWilliamson County Courthouse
200 W. Jefferson
Marion, IL 62959
618-998-2110 – County Clerk
618-997-1301 – Circuit Clerk
618-998-2110 – Recorder
IRAD—c/o Records Management
Morris Library, Mail Code 6808
Southern Illinois University
1835 University Press Dr.
Carbondale, IL 62901-6808
618-453-3040
Established
- February 28, 1839 (Laws, 1839, p. 110)
Origin of the name of the county
- Named after Williamson County in Tennessee through the influence of emigrants from that county. Williamson County, Tennessee, was named in honor of Hugh Williamson (1735–1819), a surgeon general of North Carolina troops in the American Revolutionary War, a North Carolina legislator, and member of the Continental Congress and United State Congress.
Present area, or parts of it, formerly included in
- 1818–1839 – Franklin
- 1816–1818 – Jackson
- 1812–1818 – Gallatin
- 1812–1816 – Johnson
- 1795–1816 – Randolph
- 1790–1801 – Knox, Northwest Territory
County Seats
- 1839–present – Marion
History of county governing board
- 1839–1849 – County Commissioners’ Court
- 1849–1873 – County Court
- 1873–1907 – Board of County Commissioners
- 1907–1933 – County Board of Supervisors
- 1933–present – Board of County Commissioners
Documented Record Losses
- May 30, 1875 – Fire. Some records lost or damaged.
Township Government
- Adopted – November 5, 1907
- Discontinued – November 1, 1932
Township Names (1907–1932)
- Blairsville
- Carterville
- Corinth
- Crab Orchard
- Creal Springs
- East Marion
- Grassy
- Herrin
- Lake Creek
- Southern
- Stonefort – Name changed from Saline on January 4, 1908.
- West Marion
Township Map
Pertinent Databases