| Code | Name | Region |
|---|---|---|
| USDFE | Deerfield | NH |
| USDJ3 | Deerfield | NJ |
| USDFL | Deerfield | OH |
| USDFD | Deerfield | WI |
| USDEE | Deerfield Beach | FL |
| USDRG | Deering | AK |
| USDPA | Deerpark | FL |
| USDWD | Deerwood | MN |
| USDFX | Defense | TX |
| USDEF | Deferiet | NY |
| USDEH | Decorah | IA |
| USDED | Dedham | MA |
| USWDB | Deep Bay | AK |
| USE5P | Deep Gap | NC |
| USDEQ | Deep River | CT |
| USDPW | Deepwater | NJ |
| USDE8 | Deer | AR |
| USDR9 | Deer Creek | MN |
| USDGR | Deer Grove | IL |
| USYUO | Deer Harbor | WA |
| USJDS | Deer Island | OR |
| US8DI | Deer Isle | ME |
| USDLQ | Deer Lake, Schuylkill | PA |
| USDEG | Deer Lodge | MT |
| USDL7 | Deer Lodge | TN |
| USDP5 | Deer Park | CA |
| USFJY | Deer Park | IL |
| US5DP | Deer Park | LA |
| USERP | Deer Park | MD |
| USDPK | Deer Park | NY |
| US2DE | Deatsville | AL |
| USDB2 | Debary | FL |
| USDB6 | Debord | KY |
| USDCU | Decatur | AL |
| USDTU | Decatur | AR |
| USDCG | Decatur | GA |
| USDEC | Decatur | IL |
| USDCR | Decatur | IN |
| USXEX | Decatur | MI |
| USDSU | Decatur | NE |
| USDC9 | Decatur | OH |
| USDTV | Decatur | TN |
| USDEU | Decatur | TX |
| USDT2 | Decatur City | IA |
| USDTR | Decatur Island | WA |
| US8DV | Decaturville | TN |
| USDCH | Decherd | TN |
| USDKR | Decker | IN |
| US9DP | Decker Prairie | TX |
| USDCL | Declo | ID |