- Uniontown
- Urban
- Upper Holmesburg
- Upsal
- Uledi
- Ulster
- Unionville
- Unionville, Beaver
- United
- Unityville
- Upper Darby
- Upper Providence Township
- Upper Saint Clair
- Upper Strasburg
- Upper Brownville
- Unamis
- Union Hill
- Upsonville
- Union Center
- Uniontown
- Ulysses
- Union Dale
- Upper Saint Clair
- Ursina
- Uswick
- Upper Whyel
- Uniontown
- Uno