| Code | Name | Region |
|---|---|---|
| USWGQ | Weyers Cave | VA |
| USWEY | Weymouth | MA |
| USW2Q | Whalan | MN |
| USWWP | Whale Pass | AK |
| USAE3 | Whaleysville | MD |
| USWTQ | Wharton | NJ |
| USWHT | Wharton | TX |
| USYWH | Whately | MA |
| USWQE | Wheat Ridge | CO |
| USFWH | Wheatfield | IN |
| USW3F | Wheatfield | NY |
| USW3D | Wheatland | IA |
| USWGL | Wheatland | PA |
| USWPE | Westport | MA |
| USW6P | Westport | MD |
| USWPP | Westport | PA |
| USWP4 | Westport | SD |
| USWSZ | Westport | WA |
| USZWI | Westport Point | MA |
| USWJS | Westside | IA |
| USIOT | Westtown | NY |
| USZTV | Westville | IL |
| USWVK | Westville | IN |
| USWVE | Westville | NJ |
| USZIY | Westville | OK |
| USWWO | Westwego | LA |
| US3DC | Westwood | CA |
| USXOA | Westwood | KS |
| USVEW | Westwood | MA |
| USXOI | Westwood | NJ |
| USWPJ | Westwood Village | CA |
| USWRF | Wethersfield | CT |
| USUU2 | Wetonka | SD |
| USWSC | Weston | CT |
| USWNO | Weston | FL |
| USLY3 | Weston | GA |
| USWE3 | Weston | ID |
| USWS4 | Weston | MA |
| USIWE | Weston | MI |
| USWSY | Weston | MO |
| USOHE | Weston | OH |
| USXOB | Weston | OR |
| US7WN | Weston | VT |
| USWZT | Weston | WI |
| USWZE | Weston | WV |
| USWY7 | Weston | WY |
| USWNM | Weston Mills | NY |
| USYTZ | Westover | AL |
| USWXO | Westover | GA |
| USZXQ | Westover | MD |