- Trinity
- Trotter Crossing
- Tulip
- Tunker
- Tunnelton
- Turkey Creek
- Turkey Creek Meadows
- Turkey Track
- Turleys
- Turner
- Turner Grove
- Turpin Hill
- Twelve Mile
- Twelve Points
- Twin Beach
- Twin Bridges
- Twin Brooks
- Twin Island
- Twin Lakes
- Twin Lakes
- Twin Sister Island Number Two
- Tyner
- Tyner Crossing
- Tell City
- Terre Haute
- Thorntown
- Town of Pines
- Trafalgar
- Trail Creek
- Tri-Lakes