U
- (Bullock County) Utter Rock
- (Cleburne County) Union Creek
- (Cherokee County) Umpqua
- (Baxter County) Upper Highland
- (Jackson County) Unionvale
- (Bibb County) Uniontown
- (Cherokee County) Union Gap
- (Cullman County) Upper Soda
- (Baxter County) Union Mills
- (Arkansas County) Unity
- (Covington County) Unity
- (Franklin County) Ukiah
- (Franklin County) Umapine
- (Geneva County) Union
- (Franklin County) Umatilla