Clinton County Board (Illinois)


The Clinton County Board is the legislative body in Clinton County, Illinois, made up of 15 board members who are elected by district for four- and two- year terms. The county board sets policy and laws for the county regarding property, public health services, public safety, and maintenance of county highways. Since 2022, Clinton County is presided over by the County Board Chairman, Brad Knolhoff.

List of members

This is a list of the Clinton County Board Members in order by district. This list is current as of September 2025.
DistrictCommissionerTerm ExpiresParty
ChairmanBrad Knolhoff2026Republican
1Nelson Heinzmann2026Republican
1Ken Knolhoff2026Republican
1Joe Jansen2028Republican
2Brad Knolhoff2026Republican
2Jeff Crisel2026Republican
2Greg Reichman2028Republican
3Mike Strieker2026Republican
3Ann Schroeder2028Republican
3Mike Hilmes2026Republican
4David Viezer2028Republican
4Mike Rakers2026Republican
4Kurt Schmitz2028Republican
5Gary Arentsen2028Republican
5Bruce Rapien2028Republican
5Curt Haselhorst2026Republican