Clarkton is a city in Dunklin County, Missouri, United States. The population was 1,330 at the 2000 census. The local Clartkton public school was founded in 1871, and the school mascot is the reindeer. Clarkton apartments for rent comparison page shows most up to date rent information on Clarkton apartments and houses. Rent information is obtained from multiple rental sources but we cannot guarantee their accuracy.