Sumner County
Cities
- Gallatin (county seat)
- Goodlettsville (partly in Davidson County)
- Hendersonville
- Millersville (partly in Robertson County)
- Mitchellville
- Portland (partly in Robertson County)
- White House (small part in Robertson County)
Town
Census-designated places
- Bethpage
- Bransford
- Castalian Springs
- Cottontown
- Fairfield
- Graball
- New Deal
- Oak Grove
- Shackle Island
- Walnut Grove
Unincorporated communities
- Bon Air
- Brackentown
- Cairo
- Corinth
