Augusta is a census-designated place (CDP) as well as a town in Lewis and Clark County, Montana, United States. The population was 315 at the 2015 census. The most accepted version in the naming of this town is after Augusta Hogan, thought to be the first child born in this town, the daughter of J. D. Hogan, an early rancher.
Augusta is part of the Helena Micropolitan Statistical Area.
The original townsite was dedicated on May 8, 1893. A huge fire on April 4, 1901 destroyed part of the town.