Lewistown is a city in Lewis County, Missouri, United States.

[6] A post office called Lewiston was established in 1872, and the name was changed to Lewistown in 1897.

[7] The Quincy, Missouri, and Pacific Railroad Station was listed on the National Register of Historic Places in 1979.

[8] According to the United States Census Bureau, the city has a total area of 0.48 square miles (1.24 km2), all land.

The racial makeup of the city was 98.5% White, 1.1% African American, and 0.4% from two or more races.

37.7% of all households were made up of individuals, and 16% had someone living alone who was 65 years of age or older.

35.1% of all households were made up of individuals, and 21.8% had someone living alone who was 65 years of age or older.