The Putnam County Fair is held at the fairgrounds in Unionville, Missouri. Unionville is located 110 miles south of Des Moines, Iowa; 150 miles northeast of Kansas City, Missouri and 200 miles northwest of Saint Louis, Missouri. The grounds are located on U.S. Highway 5 just north of the highway 136 and 5 intersection. The 9-1-1 address for the grounds is 615 North 22nd Street. Check out the fairgrounds map below. Come join us at the Putnam County Fair!