| Code | Name | Region |
|---|---|---|
| USDT5 | Dayton | IL |
| USDY2 | Dayton | KY |
| USJYT | Dayton | MN |
| USQYT | Dayton | MT |
| USDYT | Dayton | NJ |
| USDYJ | Dayton | NV |
| USDYD | Dayton | NY |
| USDAY | Dayton | OH |
| USXET | Dayton | OR |
| USD2Y | Dayton | PA |
| USDA8 | Dauphin | PA |
| USDVT | Davant | LA |
| USDAV | Davenport | CA |
| USDVP | Davenport | FL |
| USDVN | Davenport | IA |
| US9VP | Davenport | VA |
| USD3P | Davenport | WA |
| USDTY | David City | NE |
| USDAO | Davidson | NC |
| USDV2 | Davidsonville | MD |
| USDA3 | Davidsville | PA |
| USDVF | Davie | FL |
| USDVE | Davie | NC |
| USDAS | Davis | CA |
| USDVS | Davis | OK |
| USD2V | Davis | WV |
| USDJ9 | Davis Junction | IL |
| USDFB | Davis Monthan Afb | AZ |
| USDBG | Davisburg | MI |
| USDVO | Davison | MI |
| USDXB | Darby | MT |
| USDBB | Darby | PA |
| USDAR | Dardanelle | AR |
| USDAQ | Darien | CT |
| USDIE | Darien | GA |
| USDII | Darien | IL |
| USDDR | Darien | WI |
| USDIR | Darien Center | NY |
| USDIF | Darlington | IN |
| USDIT | Darlington | MD |
| USDLP | Darlington | PA |
| USDRN | Darlington | SC |
| USDGY | Darlington | WI |
| USDN3 | Darrington | WA |
| USDRR | Darrow | LA |
| USDQT | Dartmouth | MA |
| USDA7 | Dassel | MN |
| USDL3 | Dateland | AZ |
| USEIP | Dauberville | PA |
| USDI2 | Daufuskie Island | SC |