Settlers started arriving in the Clinton County area during the late 1820's. Along with a large German Immigrant population, settlers arrived from points across Europe. The flat landscape and rich soil attracted those who chose farming as their profession. Along with the agricultural enterprises were supporting businesses such as tanners, wagon makers, and general supplies merchants. Clinton County was formed in May of 1830.

     This farming community flourished when a railroad was erected in the 1870's. Numerous train lines came in and out of the area, brining prosperity and new residents to the county. Historically a small agricultural community, Clinton County experience an industrial development boom beginning in the early 1900's, when the Frankfort Industrial Association, the forerunner of the Clinton County Chamber, attracted several manufacturers to the area companies provided residents with hundreds of career opportunities, and brought recognition to Frankfort. Since this time, commercial and industrial development has continues steadily and the area continues to prosper. Today, along with its strong agricultural community, Clinton County is home to some of the world's largest industries.