Miltonsburg is a village in Monroe County, Ohio, United States.

David Pierson named Clarington, Ohio after his daughter Clarinda.

According to the United States Census Bureau, the village has a total area of 0.07 square miles (0.18 km2), all of it land.

There were 25 housing units at an average density of 357.1 per square mile (137.9/km2).

There were 11 housing units at an average density of 142.7 per square mile (55.1/km2).

18.2% of all households were made up of individuals, and 18.2% had someone living alone who was 65 years of age or older.