| Code | Name | Region |
|---|---|---|
| USSTW | Strausstown | PA |
| USYYB | Strawberry | CA |
| USS9Y | Strawberry Plains | TN |
| USSP5 | Strawberry Point | IA |
| USSMW | Streamwood | IL |
| USSTR | Streator | IL |
| USST6 | Street | MD |
| USSBH | Streetsboro | OH |
| USXMS | Strinestown | PA |
| USZTN | Stoughton | WI |
| USQUL | Stoutland | MO |
| USS25 | Stovall | NC |
| USMMN | Stow | MA |
| USVOW | Stow | NY |
| USSWT | Stow | OH |
| USXTW | Stowe | PA |
| USMVL | Stowe | VT |
| USQST | Stoystown | PA |
| USSFF | Strafford | MO |
| US8FF | Strafford | NH |
| USS8F | Strafford | PA |
| USS7D | Strafford | VT |
| USSNB | Strang | TX |
| USSBG | Strasburg | OH |
| USQQZ | Strasburg | PA |
| USSRS | Strasburg | VA |
| US9SF | Stratford | CA |
| USJSD | Stratford | CT |
| USSDZ | Stratford | NJ |
| USUP5 | Stoney Fork | KY |
| USSGN | Stonington | CT |
| USSN6 | Stonington | IL |
| USSG4 | Stonington | ME |
| USZTY | Stony Brook | NY |
| USS5C | Stony Creek | VA |
| USYOT | Stony Point | NC |
| USS8T | Stony Point | NY |
| USNYI | Stony Point, Rockland | NY |
| USDQE | Stony Ridge | OH |
| USSRV | Stony River | AK |
| USSO9 | Stookey | IL |
| US5DR | Storden | MN |
| USSLB | Storm Lake | IA |
| USZST | Stormville | NY |
| USS7R | Storrie | CA |
| US9ST | Storrs | CT |
| USITY | Story City | IA |
| USTZI | Stotts City | MO |
| USSOU | Stoughton | MA |
| USJSK | Stockton | MO |