| Code | Name | Region |
|---|---|---|
| USDEN | Denver | CO |
| USDTZ | Denver | MO |
| USDID | Denver | NC |
| USDAJ | Denver | NY |
| USDNQ | Denver | PA |
| USDVC | Denver City | TX |
| USDNL | Denville | NJ |
| USD9N | Depauw | IN |
| USDPE | Depew | NY |
| USDPO | Deport | TX |
| USDMN | Deming | NM |
| USDPM | Deming | WA |
| USDMP | Demopolis | AL |
| USOSQ | Demorest | GA |
| USEYY | Demotte | IN |
| USYDI | Denair | CA |
| USDNI | Denali | AK |
| USD4D | Denaud | FL |
| USFT3 | Dendron | VA |
| USDQQ | Denham | IN |
| USDNM | Denham Springs | LA |
| USDHF | Denhoff | ND |
| USDNS | Denison | IA |
| USDSZ | Denison | TX |
| USD8E | Denmark | ME |
| USZC2 | Denmark | NY |
| USDMK | Denmark | SC |
| USDXS | Denmark | WI |
| USDJS | Dennis | MA |
| USD2N | Dennis | TX |
| USDC4 | Dell City | TX |
| USDQY | Dellroy | OH |
| USDM3 | Delmar | DE |
| USDMM | Delmar | MD |
| USDVQ | Delmont | PA |
| USDJI | Deloit | IA |
| USDEI | Delphi | IN |
| USDEP | Delphos | OH |
| USDRJ | Delran | NJ |
| USDYB | Delray | WV |
| USDEY | Delray Beach | FL |
| USAL5 | Delta | AL |
| USDTC | Delta | CO |
| USDA2 | Delta | OH |
| USDT9 | Delta | PA |
| USDTA | Delta | UT |
| USDJN | Delta Junction | AK |
| USDN5 | Delton | MI |
| USDLT | Deltona | FL |
| USDM8 | Demarest | NJ |