| Code | Name | Region |
|---|---|---|
| USSXH | Saint Pauls | NC |
| US6TT | Saint Pete Beach | FL |
| USSIP | Saint Peter | MN |
| USSQS | Saint Peters | MO |
| USQSZ | Saint Peters | PA |
| USPIE | Saint Petersburg | FL |
| USSRE | Saint Rose | LA |
| USTSY | Saint Louisville | OH |
| USS4L | Saint Lucas | IA |
| USSL2 | Saint Lucie | FL |
| USAIT | Saint Marks | FL |
| USSJ5 | Saint Martin | MN |
| USSKM | Saint Martinville | LA |
| USKSM | Saint Marys | AK |
| USSJW | Saint Marys | GA |
| USIYQ | Saint Marys | IA |
| USINY | Saint Marys | IN |
| USYTS | Saint Marys | KS |
| USYSR | Saint Marys | KS |
| USSMR | Saint Marys | OH |
| USSTQ | Saint Marys | PA |
| USSMA | Saint Marys | WV |
| USXSM | Saint Marys City | MD |
| USSMB | Saint Matthews | SC |
| USRAD | Saint Meinrad | IN |
| USSMK | Saint Michael | AK |
| USTMI | Saint Michael | MN |
| USSJO | Saint John | ND |
| USSJN | Saint Johns | AZ |
| USJO4 | Saint Johns | FL |
| USSJ4 | Saint Johns | MI |
| USJBY | Saint Johnsbury | VT |
| USC33 | Saint Johnsbury Center | VT |
| USTOU | Saint Johnsville | NY |
| USSJF | Saint Joseph | FL |
| USXLM | Saint Joseph | IL |
| USYSJ | Saint Joseph | LA |
| USSXX | Saint Joseph | MI |
| USSJP | Saint Joseph | MN |
| USSTJ | Saint Joseph | MO |
| USUIS | Saint Louis | CA |
| USUTS | Saint Louis | LA |
| USSYT | Saint Louis | MI |
| USSTL | Saint Louis | MO |
| USOK9 | Saint Louis | OK |
| USSLZ | Saint Louis Park | MN |
| USS2L | Saint Louis/sierra County | CA |
| USL2L | Saint Helens | KY |
| USSTH | Saint Helens | OR |
| USHZA | Saint Henry | OH |