- Unionville
- Undercliff Junction
- Upper Montvale
- Union Landing
- Union Mills
- Union Mills
- Upper Mill
- Upton
- Upper Island
- Upper Montclair
- Union
- Unionville
- Union Valley
- Union Hill
- Upper Longwood
- Upper Greenwood Lake
- Upper Macopin
- Uttertown
- Union Grove
- Ukrainian Village
- Upper Mohawk
- Municipio de Union
- Union Square
- Union Village
- Unionburg
- Uniontown
- Upper Pohatcong
- Upper Stewartsville
- Unionville
- Union