| Code | Name | Region |
|---|---|---|
| USPME | Port Manatee | FL |
| USPML | Port Moller | AK |
| US4PB | Port Byron | IL |
| USQ3R | Port Byron | NY |
| USPCV | Port Canaveral | FL |
| USP5C | Port Carbon | PA |
| USPCH | Port Charlotte | FL |
| USUXZ | Port Chester | NY |
| USPZH | Port Chicago | CA |
| USKPC | Port Clarence | AK |
| USPCN | Port Clinton | OH |
| USPCX | Port Costa | CA |
| USZE7 | Port Deposit | MD |
| USQPR | Port Eads | LA |
| USPDW | Port Edwards | WI |
| USPEB | Port Elizabeth | NJ |
| USPEF | Port Everglades | FL |
| USPE2 | Port Ewen | NY |
| USFOC | Port Fourchon | LA |
| USPFD | Port Frederick | AK |
| USPGH | Port Gamble | WA |
| USPGB | Port Gibson | MS |
| USYPV | Poplarville | MS |
| US7PO | Poquonock | CT |
| USQOS | Poquoson | VA |
| USPCK | Porcupine Creek | AK |
| USPTD | Port Alexander | AK |
| USPTC | Port Alice | AK |
| USPTG | Port Allegany | PA |
| USPAL | Port Allen | HI |
| USPLL | Port Allen | LA |
| USPTA | Port Alsworth | AK |
| USQPT | Port Alto | TX |
| USCLM | Port Angeles | WA |
| USTZS | Port Aransas | TX |
| USPTL | Port Armstrong | AK |
| USPOA | Port Arthur | TX |
| USKPY | Port Bailey | AK |
| USRTB | Port Barre | LA |
| USPBW | Port Bienville | MS |
| USPRY | Port Blakely | WA |
| USPOB | Port Bolivar | TX |
| USPZN | Ponder | TX |
| USPYF | Ponderay | ID |
| USPO7 | Ponsford | MN |
| USQPV | Ponte Vedra | FL |
| USP4V | Ponte Vedra Beach | FL |
| USPOI | Pontiac | IL |
| USPTK | Pontiac | MI |
| USPIB | Pontiac | SC |