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.
This is a list of the Clinton County Board Members in order by district. This list is current as of September 2025.