The Jefferson County Fairgrounds are supported by many area businesses and organizations. Please visit our sponsors and the wonderful organizations below.
- 4-H Clubs
Heart ~ Hands ~ Health. Explore what Jefferson County’s 4-H clubs have to offer.
- Hillsboro Community Civic Club
Members from all over Jefferson county supporting the fair grounds and our community.
- University of Missouri Extension Jefferson County
Bringing the resources of the University of Missouri to bear in our community.
Please contact us if you’d like to have your organization recognized as a friend of the fairgrounds.