- Toledo
- Tacoma
- Taholah
- Tanner
- Tekoa
- Tenino
- Terrace Heights
- Thorp
- Three Lakes
- Tieton
- Tokeland
- Tonasket
- Toppenish
- Touchet
- Town and Country
- Tracyton
- Trentwood
- Trout Lake
- Tukwila
- Tulalip Bay
- Tumwater
- Twisp
- T Bridge Corner
- Tahlequah
- Tahoma
- Tahuya
- Tall Cedars Mobile Court
- Tall Firs Estates Mobile Home Park
- Tally Ho Mobile Home Park
- Tamill