Warren County is a county located on the Cumberland Plateau in Middle Tennessee, one of the three Grand Divisions of the U.S. state of Tennessee. As of the 2020 census, the population was 40,953. Its county seat is McMinnville. Warren County comprises the McMinnville, TN Micropolitan Statistical Area.

Cannon County is a county located in the U.S. state of Tennessee. As of the 2020 census, the population was 14,506. Its county seat is Woodbury. Cannon County is part of the Nashville–Davidson–Murfreesboro–Franklin, TN Metropolitan Statistical Area.