| Code | Name | Region |
|---|---|---|
| USN8G | Energy | TX |
| USENF | Enfield | CT |
| US6EF | Enfield | IL |
| USEFL | Enfield | NC |
| USE4F | Enfield | NH |
| USEAD | England | AR |
| USNGE | Englevale | ND |
| USQTS | Englewood | CO |
| USXEW | Englewood | FL |
| USEWD | Englewood | NJ |
| USEGS | Emigsville | PA |
| USEY8 | Emily | MN |
| USEN2 | Eminence | KY |
| USEII | Eminence | MO |
| USEMX | Emlenton | PA |
| USEMU | Emmaus | PA |
| USET6 | Emmet | AR |
| USEMG | Emmetsburg | IA |
| USEEI | Emmett | ID |
| USEMK | Emmonak | AK |
| USYEM | Emory | TX |
| USEP8 | Empire | AL |
| USEPE | Empire | LA |
| USYZZ | Empire | MI |
| USEPW | Empire | NV |
| USEMP | Emporia | KS |
| USERA | Emporia | VA |
| USEUI | Emporium | PA |
| USEMH | Emsworth | PA |
| USXFE | Encinitas | CA |
| USEW9 | Elwood | NE |
| USEWQ | Elwood | NJ |
| US3LF | Elwood | TX |
| USEY4 | Ely | IA |
| USLYU | Ely | MN |
| USELY | Ely | NV |
| USEIA | Elyria | OH |
| USEYS | Elysburg | PA |
| USM7I | Elysian | MN |
| USEMB | Embarcadero/san Francisco | CA |
| USE7M | Embarrass | WI |
| USEJX | Emden | IL |
| USEMA | Emelle | AL |
| USZZX | Emerald Isle | NC |
| USZQN | Emerson | GA |
| USIAE | Emerson | IA |
| USEQS | Emerson | NJ |
| USEMY | Emery | SD |
| USJEM | Emeryville | CA |
| USEM4 | Emigrant Gap | CA |