Leeton is a city in southeast Johnson County, Missouri, United States.

Leeton was platted in 1895, and named after J. J. Lee, the original owner of the town site.

[6] According to the United States Census Bureau, the city has a total area of 0.51 square miles (1.32 km2), all land.

There were 283 housing units at an average density of 554.9 per square mile (214.2/km2).

30.2% of all households were made up of individuals, and 9.9% had someone living alone who was 65 years of age or older.

There were 277 housing units at an average density of 546.0 per square mile (210.8/km2).

23.8% of all households were made up of individuals, and 13.4% had someone living alone who was 65 years of age or older.