- Teske
- Thavis
- Tokio
- Telegraph Island
- The Island
- Telma
- Town's Mobile Home Park
- Trinity
- Twin Peaks Manor Mobile Home Park
- Tatoosh Island
- The Middle Ground
- Tivoli Island
- Tskawahyah Island
- Tsoo-Yess
- Twin
- Tucannon
- Terrace Park
- Touhey
- Toroda
- Tri-Cities
- Tiflis
- Trinidad
- Tulips
- Tunnel Island
- Terry Mobile Park
- Terrys Corner
- Town and Country Mobile Home Park
- Tyee Beach
- The Twins
- Tukey