Brad Knolhoff
Clinton County Board Chairman
Clinton County, Illinois – Established 1824
Located less than an hour from St. Louis, Missouri, Clinton County leads the state of Illinois in dairy farming and pork, wheat and egg production. In addition, the county boasts Carlyle Lake – the largest man-made lake in Illinois covering over 26,000 acres filled with outdoor recreation opportunities. Country roads wind past acres of farmland, across the Kaskaskia River and through villages and towns established in the 1800s.
Visitors are greeted with warm smiles and a hearty welcome. The next time you’re in southern Illinois, take time out to explore Clinton County and all that this wonderful county has to offer. Clinton County operates under the township form of government with the County Board as its governing body. On behalf of the 15-member County Board and Board Chairman Brad Knolhoff, welcome to this Clinton County website.
Voting & Elections
- Vote by Mail & Voter Online Portal
- Voting & Election Information
- Latest Election Results
- Election Voting Schedule
- Sample Ballot – Publication
Quicklinks
- Comprehensive Plan
- Enterprise Zone
- Online GIS Map
- FOIA Information Request
- County Holiday Schedule
Community
- Health & Wellness
- Municipalities
- Townships
- Veterans Memorial
- Visitors
Everything Your Growing Business Needs
- Developers in the County Enterprise Zone don’t pay sales tax on building materials.
- Clinton County is less than 30 miles from downtown St. Louis and 8 miles from Mid-America Airport.
- Clinton County has industrial parks with room to grow, including our own 100 acre industrial park in Carlyle.
- Clinton County has a well-trained and dynamic workforce.
- Clinton County is home to Kaskaskia Community College and a short distance from McKendree University and Southwestern Illinois College.
