| Code | Name | Region |
|---|---|---|
| US3BB | Burkburnett | TX |
| USXRK | Burke | NY |
| USK55 | Burke | SD |
| USUKE | Burke | VA |
| USZBV | Burkesville | KY |
| USUKV | Burkeville | VA |
| USBQL | Burkville | AL |
| USBND | Burleson | TX |
| USZBU | Burley | ID |
| USBYP | Burley | PA |
| USBYI | Burley-rupert Apt | ID |
| USBGI | Burlingame | CA |
| USLGO | Burlington | CO |
| USBUU | Burlington | CT |
| USBRL | Burlington | IA |
| USBL7 | Burlington | IL |
| USBGZ | Burlington | IN |
| USD3X | Burlington | KS |
| USUBZ | Bulville | NY |
| USBZP | Bumpass | VA |
| USBKB | Bunker | MO |
| USZBA | Bunker Hill | IL |
| USJBH | Bunker Hill | IN |
| USB3H | Bunker Hill | WV |
| USBQK | Bunkie | LA |
| USBNY | Bunn | NC |
| USUEL | Bunnell | FL |
| USULO | Bunola | PA |
| USBUS | Buras | LA |
| USBUR | Burbank | CA |
| USBUK | Burbank | IL |
| USBB7 | Burbank | OH |
| USBB2 | Burbank | WA |
| USUHR | Burchard | NE |
| USQBG | Burdett | KS |
| USB9N | Burdett | NY |
| US2BU | Bureau | IL |
| USBAU | Burgaw | NC |
| USBZ2 | Buffalo | SC |
| USUTX | Buffalo | TX |
| USFFO | Buffalo | WV |
| USBYG | Buffalo | WY |
| USBGO | Buffalo Grove | IL |
| USUJC | Buffalo Junction | VA |
| USBUG | Buffalo Lake | MN |
| USBFA | Buford | GA |
| USB9U | Buhl | AL |
| USBHL | Buhl | ID |
| USB6L | Buhl | MN |
| USUHL | Buhler | KS |