T
- Table Grove
- Tabor
- Talbott
- Tallmadge
- Tallula
- Tamalco
- Tamaroa
- Tamms
- Tampico
- Tanner Woods
- Tansill
- Tatumville
- Taylor
- Taylor Ridge
- Taylor Springs
- Taylorville
- Tazewell
- Teheran
- Temple Hill
- Tennessee
- Terrace
- Terra Cotta
- Terre Haute
- Teutopolis
- Texas City
- Texas Corner
- Texico
- Thackeray
- Thawville
- Thayer
- Thebes
- The Burg
- Third Lake
- Thomas
- Thomasboro
- Thomasville
- Thompsonville
- Thomson
- Thornton
- Thurber
- Tice
- Ticona
- Tilden
- Tilton
- Timberlane
- Timber Ridge
- Timber Ridge Mobile
- Time
- Timewell
- Timmons
- Timothy
- Tinley Park
- Tioga
- Tipton
- Tiskilwa
- Tison
- Titus
- Todds Mill
- Todds Point
- Toledo
- Tolono
- Toluca
- Tomlinson
- Tomlinson Siding
- Toms Prairie
- Tonica
- Tonti
- Topeka
- Torino
- Toronto
- Toulon
- Tovey
- Towanda
- Tower Hill
- Tower Lakes
- Towne Oaks
- Town Hall
- Trailpark Gardens
- Tremont
- Trenton
- Trenton Corners
- Tresner
- Trilla
- Trimble
- Triumph
- Trivol
- Troster
- Trout Valley
- Trowbridge
- Troxel
- Troy
- Troy Crossing
- Troy Grove
- Troy Junction
- Trumbull
- Truro
- Tunbridge
- Tunnell Hill
- Turner Landing
- Turpin
- Tuscarora
- Tuscola
- Twelvemile Corner
- Twin Churches
- Twin Grove