| Code | Name | Region |
|---|---|---|
| USDLU | Delano | PA |
| USDOQ | Delano | TN |
| USD2L | Delanson | NY |
| USDPX | Delaplane | VA |
| USD9E | Delavan | IL |
| USDEA | Delavan | WI |
| USD3W | Delaware | NJ |
| USDEL | Delaware | OH |
| USDCI | Delaware City | DE |
| USDWG | Delaware Water Gap | PA |
| USVV7 | Delbarton | WV |
| USDON | Deleon | TX |
| USDVA | Delevan | NY |
| USDHI | Delhi | IA |
| USDHX | Delhi | LA |
| USYDP | Delhi | NY |
| USDIJ | Delhi | OH |
| USDLE | Delisle | MS |
| USLLR | Dell | AR |
| USDL8 | Dell | MT |
| USDFA | Defiance | IA |
| USDFC | Defiance | MO |
| USDFI | Defiance | OH |
| USDCB | Dekalb | IL |
| USDBA | Del Bonita | MT |
| USD2C | Del City | OK |
| USDMA | Del Mar | CA |
| USDM2 | Del Mar, San Diego | CA |
| USDN2 | Del Norte | CO |
| USDLY | Del Rey | CA |
| USEKS | Del Rey Oaks | CA |
| USDRZ | Del Rio | TN |
| USDRT | Del Rio | TX |
| USDVM | Del Valle | TX |
| USDFZ | Delafield | WI |
| USDLA | Delair | NJ |
| USDLJ | Delanco | NJ |
| USDD5 | Deland | FL |
| USDNO | Delano | CA |
| USDOX | Delano | MN |
| USXFA | Deer Park | OH |
| USDPC | Deer Park | PA |
| USDEX | Deer Park | TX |
| USDP2 | Deer Park, Camden | NJ |
| USDMT | Deer River | MN |
| US6DB | Deerbrook | WI |
| USDRD | Deerfield | IL |
| USDDE | Deerfield | MA |
| USDLZ | Deerfield | MI |
| USDFM | Deerfield | MO |