Hopkinsville is a home rule-class city in and the county seat of Christian County, Kentucky, United States. The population at the 2010 census was 31,577.

Owensboro is a home rule-class city in and the county seat of Daviess County, Kentucky, United States. It is the fourth-largest city in the state by population. Owensboro is located on U.S. Route 60 and Interstate 165 about 107 miles (172 km) southwest of Louisville, and is the principal city of the Owensboro metropolitan area. The 2010 census had its population at 57,265. The metropolitan population was estimated at 116,506. The metropolitan area is the sixth largest in the state as of 2018, and the seventh largest population center in the state when including micropolitan areas.

Oak Grove is a home rule-class city adjacent to the Fort Campbell army base in Christian County, Kentucky, in the United States. The population was 7,489 as of the 2010 U.S. Census. It is part of the Clarksville, Tennessee metropolitan area.

Bowling Green is a home rule-class city and the county seat of Warren County, Kentucky, United States. Founded by pioneers in 1798, Bowling Green was the provisional capital of Confederate Kentucky during the American Civil War. As of 2019, its population of 70,543 made it the third-most-populous city in the state, after Louisville and Lexington; its metropolitan area, which is the fourth largest in the state after Louisville, Lexington, and Northern Kentucky, had an estimated population of 179,240; and the combined statistical area it shares with Glasgow has an estimated population of 233,560.In the 21st century, it is the location of numerous manufacturers, including General Motors and Fruit of the Loom. The Bowling Green Assembly Plant has been the source of all Chevrolet Corvettes built since 1981. Bowling Green is also home to the state's second-largest public university, Western Kentucky University. In 2014, Forbes magazine listed Bowling Green as one of the Top 25 Best Places to Retire in the United States.