- Thoten
- Thurman
- Ticonic
- Tiffin
- Tileville
- Tilton
- Timber Valley Mobile Home Park
- Tingley
- Tioga
- Tipperary
- Tipton
- Tipton Mobile Home Park
- Titonka
- Titu
- Toddville
- Toeterville
- Toledo
- Toolesboro
- Toronto
- Tower Terrace Mobile Home Park
- Towhead Island
- Tracy
- Traer
- Trenton
- Treynor
- Triboji Beach
- Trienes Bar
- Tripoli
- Troy
- Troy Mills