Fredericktown is a village in Knox County, Ohio, United States.

Fredericktown was platted in 1807,[6] and named after Frederick, Maryland, the native home of a first settler.

[8] As of the census[10] of 2010, there were 2,493 people, 1,050 households, and 691 families living in the village.

There were 1,133 housing units at an average density of 575.1 per square mile (222.0/km2).

29.4% of all households were made up of individuals, and 12.7% had someone living alone who was 65 years of age or older.

There were 1,103 housing units at an average density of 781.1 per square mile (301.6/km2).

30.0% of all households were made up of individuals, and 14.0% had someone living alone who was 65 years of age or older.