- Trinity Alps
- Trinity Village
- Tagus
- Taurusa
- Teviston
- Tokay
- Tonyville
- Tooleville
- Trocha
- Twin Buttes
- Tall Timber Camp
- Tuttletown
- Twain Harte Valley
- Tancred
- Tyndall Landing
- Tambo
- Timbuctoo
- Taft Heights
- Tahoe Vista
- Talmage
- Tara Hills
- Tecopa
- Tehachapi
- Tehama
- Temecula
- Temelec
- Temple City
- Templeton
- Tennant
- Terra Bella