Toston was named for one of the original homesteaders and first postmaster, Thomas Toston. Mr. Toston bought his land from John Karns, a Virginian, who was awarded the land after the War of 1812 for 'meritorious service.' Mr. Toston built and operated the Toston Ferry on the Missouri River.
Toston is located in central Montana, on US Highway 12 between Helena and Three Forks just south of Townsend.