- Tarpey
- Tarpey Village
- Tarzana
- Tassajara
- Tassajara Hot Springs
- Tatu
- Taurusa
- Taylor
- Teakettle Junction
- Teal
- Teal Island
- Tecate
- Tejon Ranch
- Telegraph City
- Temescal
- Terminal Island
- Terminous
- Termo
- Terra Cotta
- Terra Linda
- Teviston
- The Brothers
- The Brothers
- The Cedars
- The Crossing
- The Forks
- The Grove
- The Highlands
- The Island
- The Island