| Code | Name | Region |
|---|---|---|
| USFGR | Fawn Grove | PA |
| USF2S | Fawnskin | CA |
| USFYT | Fayette | AL |
| USFQT | Fayette | IA |
| US3FY | Fayette | IL |
| USZFY | Fayette | MO |
| USYET | Fayette | MS |
| USFY7 | Fayette | OH |
| USFYV | Fayetteville | AR |
| USFYE | Fayetteville | GA |
| USFYZ | Fayetteville | IL |
| USFMQ | Farmington | ME |
| USFMI | Farmington | MI |
| USFIG | Farmington | MN |
| USFAM | Farmington | MO |
| USFPH | Farmington | NH |
| USFZM | Farmington | NJ |
| USFMN | Farmington | NM |
| USFGT | Farmington | NY |
| USFA7 | Farmington | PA |
| USFGJ | Farmington | UT |
| USVFI | Farmington | WA |
| USWV3 | Farmington | WV |
| USFGS | Farmington Falls | ME |
| USQFM | Farmington Hill | PA |
| USFHI | Farmington Hills | MI |
| USFNG | Farmington, Fayette | PA |
| USFGQ | Farmingville | NY |
| USFRV | Farmville | NC |
| USFMV | Farmville | VA |
| USFNA | Farnam | NE |
| USJFM | Farmer | OH |
| US5FC | Farmer City | IL |
| USFBX | Farmers Branch | TX |
| US7FV | Farmers Valley | PA |
| USFSB | Farmersburg | IN |
| USFC3 | Farmersville | CA |
| USF2V | Farmersville | IL |
| US6FV | Farmersville | OH |
| USVG3 | Farmersville | OH |
| USVF3 | Farmersville | TX |
| USFVF | Farmerville | LA |
| US8FD | Farmingdale | IL |
| USF8A | Farmingdale | ME |
| USFMJ | Farmingdale | NJ |
| USFRG | Farmingdale | NY |
| USFA4 | Farmington | AR |
| USZYQ | Farmington | CA |
| USFMF | Farmington | CT |
| US7FG | Farmington | IL |