| Code | Name | Region |
|---|---|---|
| USQUN | Quinton | OK |
| USQ5T | Quinton | VA |
| USQTG | Quitaque | TX |
| USQUM | Quitman | AR |
| USQTM | Quitman | GA |
| USQMN | Quitman | MS |
| USQTC | Quitman | TX |
| USQUO | Quogue | NY |
| USNCO | Quonset Point | RI |
| USRGG | Rabun Gap | GA |
| USRXA | Raceland | KY |
| USRCB | Raceland | LA |
| USZUR | Racine | OH |
| USZQE | Quarryville | PA |
| USQUA | Quartz Hill | CA |
| USQTZ | Quartzsite | AZ |
| USQEH | Quechee | VT |
| USUQE | Queen | AK |
| USQNA | Queen Anne | MD |
| USZQU | Queen City | TX |
| USQCK | Queen Creek | AZ |
| USQVG | Queens Village | NY |
| USQEE | Queens/new York | NY |
| USQBY | Queensbury | NY |
| USQUE | Queenstown | MD |
| USQM9 | Quemado | NM |
| USQKS | Quicksburg | VA |
| USUIL | Quillayute | WA |
| USQUI | Quincy | CA |
| USQCY | Quincy | FL |
| USUIN | Quincy | IL |
| USMQI | Quincy | MA |
| USQUY | Quincy | MI |
| USP4G | Purling | NY |
| USPVR | Purvis | MS |
| USUUU | Puryear | TN |
| USPU2 | Put-in-bay | OH |
| USPUN | Putnam | CT |
| USPM5 | Putnam Heights | CT |
| USIUT | Putnamville | IN |
| USPUT | Putney | VT |
| US5PU | Pu'unene | HI |
| USPX7 | Puxico | MO |
| USPUY | Puyallup | WA |
| USYP9 | Pyote | TX |
| USQUV | Quail Valley | CA |
| USQAY | Quaker City | OH |
| USQKT | Quakertown | NJ |
| USUKT | Quakertown | PA |
| USQNT | Quanah | TX |