Clarkton is a city in Dunklin County, Missouri, United States.

Originally called Beech, the town site was platted as Clarkton in 1876.

[4] The present name is after Henry E. Clark, a contractor on a new plank road leading to town.

[5][6] A post office called Beech was established in 1855, and the name was changed to Clarkton in 1870.

According to the United States Census Bureau, the city has a total area of 1.13 square miles (2.93 km2), all land.

There were 557 housing units at an average density of 492.9 per square mile (190.3/km2).

29.7% of all households were made up of individuals, and 11.7% had someone living alone who was 65 years of age or older.

28.9% of all households were made up of individuals, and 14.2% had someone living alone who was 65 years of age or older.