Williamson County Government
407 N. Monroe
Marion, Il 62959
Contact via Email
Visit our Website
Hours of OperationMonday - Friday
8 a.m. to 4 p.m.
Williamson County is dedicated to providing the best services possible to the residents of Williamson County, Illinois.
Williamson County is one of 17 Illinois counties which operate under the Commission form of government.
We have the following elected officials County Commissioners (3), County Clerk and Recorder, Treasurer, Circuit Clerk, States Attorney, Sheriff and Coroner.
We also have appointed officials that are determined by the Board of Commissioners. They are Highway Engineer, Supervisor of Assessments, Emergency Management Director, Economic Development Director and Animal Control Warden.
On occasion, you will find notices pertaining to Williamson County here.
These could be road closures, weather and disaster notices or general notices regarding the operation of Williamson County. We hope that you find these notices and links helpful.
If you have suggestions to other helpful links or notices, please feel free to contact the Commissioners at 618-997-1301 Ext. 135. We are always open for suggestions.