Gravois Mills is a town in Morgan County, Missouri, United States.

[6] Old St. Patrick's Church was listed on the National Register of Historic Places in 1979.

Missouri Route 5 passes through the town, leading north 9 miles (14 km) to Versailles, the Morgan county seat, and south 12 miles (19 km) to Sunrise Beach.

33.9% of all households were made up of individuals, and 15.3% had someone living alone who was 65 years of age or older.

The racial makeup of the town was 98.56% White, 0.96% African American, and 0.48% from two or more races.

36.6% of all households were made up of individuals, and 9.9% had someone living alone who was 65 years of age or older.

About 24.1% of families and 26.0% of the population were below the poverty line, including 69.8% of those under the age of eighteen and 10.0% of those 65 or over.