- Tesch
- Texas Corners
- Thayer
- The Heights
- The Island
- The Jackpines
- The Lakes Mobile Home Park
- Theilers
- Theodore
- Thetford Center
- Third Island
- Thomas
- Thomas
- Thomaston
- Thompson
- Thompson Island
- Thompsonville
- Thornapple Lake Estates Mobile Home Park
- Thornton
- Thornville
- Three Churches Corner
- Three Lakes
- Three Mile Lake Mobile Home Park
- Three Oaks
- Three Oaks Estates Mobile Home Park
- Three Rivers
- Three Sisters Island
- Thunder Bay Island
- Thunderbird Mobile Village
- Tift Corner