| Zip(PK) | City | State |
| 13456 | Sauquoit | NY |
| 18913 | Carversville | PA |
| 31561 | Sea Island | GA |
| 45677 | Scioto Furnace | OH |
| 46375 | Schererville | IN |
| 54560 | Sayner | WI |
| 58654 | Sentinel Butte | ND |
| 70583 | Scott | LA |
| 73663 | Seiling | OK |
| 79359 | Seagraves | TX |
| 90245 | El Segundo | CA |
| 98381 | Sekiu | WA |