Campbellsville, the seat of Taylor county, is located near the center of the county at the junction of KY 55 and KY 70, just north of Green River Lake State Park. It was settled beginning around 1808 and was established in 1817. The name is from Andrew Campbell, who owned the site. The Campbellsville post office opened in 1817. The population in 1990 was 9,577.

Campbellsville is the home of Campbellsville University.

The Taylor County Courthouse in Campbellsville.