U
- (Cleburne County) Upper Birch Island
- (Baxter County) Upper Gloucester
- (Baxter County) Upper Green Islands
- (Coffee County) Upper Landing
- (Choctaw County) Upper Mark Island
- (Ashley County) Upper Frenchville
- (Baxter County) Upper Flag Island
- (Cherokee County) Upper Drew
- (Chambers County) Upper Dam
- (Chilton County) Upper Abbot
- (Cleburne County) Unionville
- (Coffee County) Union Falls
- (Baxter County) Uncle Zeke Island
- (Blount County) Upper Torrey Island
- (Bullock County) Upper Sister Island
- (Chilton County) Upper Shirley Corner
- (Blount County) Upper Negro Island
- (Baxter County) Upper Goose Island
- (Baxter County) Upper Coombs Island
- (Chambers County) Upton
- (Clay County) Unity
- (Campbell County) Union