| Code | Name | Region |
|---|---|---|
| USDO5 | Dover | GA |
| USDER | Dover | IL |
| USDQV | Dover | KY |
| USAOV | Dover | MA |
| USD9V | Dover | MN |
| USDRV | Dover | NH |
| USDVJ | Dover | NJ |
| USDOO | Dover | OH |
| USOER | Dover | OK |
| USDR2 | Dover | PA |
| USDJO | Dora | NM |
| USDOF | Dora Bay | AK |
| USPDQ | Doral | FL |
| USDRH | Doraville | GA |
| USDQH | Dorchester | IL |
| USDZM | Dorchester | MA |
| USDC5 | Dorchester | SC |
| USDCS | Dorchester | WI |
| USDDD | Dorr | MI |
| USDNC | Dorrance | KS |
| USDT3 | Dorset | VT |
| USDRS | Dorsey | MD |
| USD2S | Dos Palos | CA |
| USDOS | Doswell | VA |
| USDHN | Dothan | AL |
| USDMB | Double Springs | AL |
| USDGZ | Douglas | AR |
| USDUG | Douglas | AZ |
| USDOU | Douglas | GA |
| US3DL | Douglas | IL |
| USDMZ | Dominguez | CA |
| USDIZ | Dominguez Hills | CA |
| USDX3 | Domino | TX |
| USDXO | Donald | OR |
| USDDS | Donalds | SC |
| USDD8 | Donaldson | MN |
| USDNA | Donaldsonville | LA |
| USDSL | Donalsonville | GA |
| USDCZ | Donegal | PA |
| USDNG | Dongola | IL |
| USDPH | Doniphan | MO |
| USDNH | Doniphan | NE |
| USXEY | Donna | TX |
| USDL9 | Donnellson | IA |
| USDYX | Donnelly | AK |
| USDL2 | Donnelly | ID |
| USDRP | Donora | PA |
| USZDV | Donovan | IL |
| USQDO | Doon | IA |
| USDO6 | Dora | AL |