- Timberlane Mobile Village
- Tinney
- Tip and Jo's Trailer Park
- Tipp City
- Tippecanoe
- Tipton
- Tiro
- Tiverton Center
- Tobasco
- Tobias
- Toboso
- Todds
- Toledo
- Toledo Junction
- Tom Corwin
- Tomlison Addition
- Tontogany
- Toots Corners
- Toots Crossroads
- Top of the Hill Mobile Home Park
- Top-of-the-Ridge
- Torch
- Toronto
- Tower Mobile Home Park
- Tower Terrace
- Town and Country Estates
- Town And Country Estates
- Town And Country Mobile Home Park
- Town And Country Park Estates
- Townwood