Idaho Cities
- Taber, ID
- Talache, ID
- Talmage, ID
- Tamarack, ID
- Taylorville, ID
- Teakean, ID
- Telegraph Hill, ID
- Tendoy, ID
- Tensed, ID
- Terreton, ID
- Teton, ID
- Tetonia, ID
- Thama, ID
- Thatcher, ID
- The Cedars, ID
- Thiard, ID
- Thomas, ID
- Thornton, ID
- Three Creek, ID
- Three Forks, ID
- Tikura, ID
- Torreys, ID
- Tramway, ID
- Travers, ID
- Treasureton, ID
- Trestle Creek, ID
- Triangle, ID
- Triumph, ID
- Trout, ID
- Troy, ID
- Trude, ID
- Tunupa, ID
- Turner, ID
- Turnpike, ID
- Tuttle, ID
- Twin Beaches, ID
- Twin Falls, ID
- Twin Forks, ID
- Twin Groves, ID
- Twin Springs, ID
- Twinlow, ID
- Two Forks, ID
- Tyhee, ID
