Summersville is a town in Shannon and Texas counties in the U.S. state of Missouri.

[7] According to the United States Census Bureau, the city has a total area of 1.11 square miles (2.87 km2), all land.

[8] As of the census[10] of 2010, there were 502 people, 232 households, and 133 families living in the city.

The racial makeup of the city was 96.8% White, 0.8% Native American, 0.2% Asian, and 2.2% from two or more races.

36.2% of all households were made up of individuals, and 22.4% had someone living alone who was 65 years of age or older.

The racial makeup of the city was 98.53% White, 0.92% Native American, 0.18% Asian, and 0.37% from two or more races.

35.6% of all households were made up of individuals, and 25.0% had someone living alone who was 65 years of age or older.