- Townsendville
- Toziers Corner
- Tracy Creek
- Transit Mobile Home Park
- Travers Corners
- Travers Island
- Travers Manor
- Travis
- Treadwell
- Treasure Island
- Treasure Island (historical)
- Treasure Island Mobile Home Park
- Tremont
- Trenton Falls
- Tressmar
- Triangle
- Tribes Hill
- Trinka's Mobile Home Park
- Triplet Islands
- Tripoli
- Tripoli
- Tristates
- Triton Valley Estates Angola Mobile Home Park
- Triton Valley Estates Derby Mobile Home Park
- Triton Valley Estates Mobile Home Park
- Triton Valley Estates Mobile Home Park
- Trolley Bed Road Park
- Trombley Landing
- Trotterview Trailer Park
- Troupsburg