| Code | Name | Region |
|---|---|---|
| US5SM | Mission Hill | SD |
| USMJH | Mission Hills | CA |
| USM6V | Mission Valley,san Diego | CA |
| USMJI | Mission Viejo | CA |
| USMSP | Minneapolis/st Paul Apt | MN |
| USMHA | Minnehaha | WA |
| USM9N | Minneola | FL |
| US9MA | Minneola | KS |
| USIJT | Minneota | MN |
| USM84 | Minnesota City | MN |
| USMKA | Minnetonka | MN |
| USMX8 | Minnie | KY |
| USARV | Minocqua | WI |
| USWMG | Minong | WI |
| USM4K | Minonk | IL |
| USIKA | Minooka | IL |
| US8OT | Minot | ME |
| USMOT | Minot | ND |
| US2MI | Minotola | NJ |
| USMZO | Minster | OH |
| USTLI | Mint Hill | NC |
| USMNT | Minto | AK |
| USQMT | Minto | ND |
| USM65 | Minturn | CO |
| US4AL | Mineral Ridge | OH |
| USM5S | Mineral Springs | AR |
| USIPU | Mineral Springs | NC |
| USYY3 | Mineral Springs | PA |
| USW37 | Mineral Wells | MS |
| USMWL | Mineral Wells | TX |
| USIWF | Mineral Wells | WV |
| USMW5 | Mineralwells | WV |
| USMVP | Minersville | PA |
| USM88 | Minersville | UT |
| USMNV | Minerva | OH |
| USXIV | Mineville | NY |
| USIQG | Mingo | IA |
| USMIG | Mingo | KS |
| USXIM | Mingo Junction | OH |
| USM7G | Mingus | TX |
| USMD9 | Minidoka | ID |
| USIPS | Minneapolis | KS |
| USMES | Minneapolis | MN |
| USM5N | Minneapolis | NC |
| USMXK | Minatare | NE |
| USMHM | Minchumina | AK |
| USNC7 | Minco | OK |
| USMYX | Minden | LA |
| USMN6 | Minden | NE |
| USMEV | Minden | NV |