| Code | Name | Region |
|---|---|---|
| USTJF | Tyndall Afb | FL |
| USTL6 | Turtle Lake | ND |
| USTTK | Turtle Lake | WI |
| UST2N | Tusayan | AZ |
| USTCL | Tuscaloosa | AL |
| USTS8 | Tuscan | MS |
| USTT9 | Tuscan | NY |
| USTU2 | Tuscarora | NV |
| USTZC | Tuscarora | PA |
| USXNH | Tuscola | IL |
| USTSC | Tuscumbia | AL |
| USTGE | Tuskegee | AL |
| USTUN | Tustin | CA |
| USTT8 | Tuttle | OK |
| USTUT | Tutwiler | MS |
| USTXD | Tuxedo | MD |
| USXND | Tuxedo Park | NY |
| USWNC | Tuxekan Island | AK |
| USTW3 | Twelve Mile | IN |
| USTNP | Twentynine Palms | CA |
| USTWN | Twin City | GA |
| USTNI | Tunica | MS |
| USTKK | Tunkhannock | PA |
| USTUI | Tunnel City | WI |
| USXNI | Tunnel Hill | GA |
| USWTL | Tuntutuliak | AK |
| USTNK | Tununak | AK |
| USTL4 | Tuolumne | CA |
| USTUP | Tupelo | MS |
| USTP3 | Tupman | CA |
| USTP2 | Tupper Lake | NY |
| USTUQ | Turkey | NC |
| USTKR | Turkey | TX |
| USTLK | Turlock | CA |
| USTNM | Turner | ME |
| USTUR | Turner | MT |
| USYTU | Turner | OR |
| USM4U | Turners Falls | MA |
| USTUO | Turners Station | KY |
| USTUE | Turnersville | NJ |
| USTLC | Turtle Creek | PA |
| USTUC | Tucker | GA |
| USDDA | Tuckerman | AR |
| USTN5 | Tuckerton | NJ |
| USTUZ | Tucson | AZ |
| USTUS | Tucson International Apt | AZ |
| USTCC | Tucumcari | NM |
| USTJN | Tujunga | CA |
| USTUK | Tukwila | WA |
| USUQQ | Tulalip | WA |