Litchfield is a town in Kennebec County, Maine, United States.

It is found in the 1790 census as Smithtown Plantation, Lincoln County, Maine.

There were 1,861 housing units at an average density of 49.7 per square mile (19.2/km2).

20.3% of all households were made up of individuals, and 6.3% had someone living alone who was 65 years of age or older.

There were 1,595 housing units at an average density of 42.6 per square mile (16.4/km2).

18.1% of all households were made up of individuals, and 5.6% had someone living alone who was 65 years of age or older.

Libby Tozier and Sabattus Primary schools serve Grades Pre-K–2.

Oak Hill Middle School serves Grades 6–8.

Oak Hill High School serves Grades 9–12 and is located in Wales.

The fair features agricultural demonstrations, an exhibition hall, a museum, an antique car parade, a demolition derby, carnival rides, games, food and vendors.