| Code | Name | Region |
|---|---|---|
| USLWM | Lawrence | MA |
| USLWR | Lawrence | MI |
| USLWE | Lawrence | NY |
| USLWN | Lawrence | PA |
| USLTP | Lawrence Township | NJ |
| USLVU | Lawrenceburg | IN |
| USLAQ | Lawrenceburg | KY |
| USXHH | Lawrenceburg | TN |
| USLRW | Lawrenceville | GA |
| USLUL | Laurel | MS |
| USLUQ | Laurel | MT |
| USLQU | Laurel | NE |
| USTQJ | Laurel | NY |
| USL9R | Laurel | PA |
| USLH9 | Laurel Hill | NC |
| USLHJ | Laurel Hill, Lincoln | NC |
| USIUP | Laurel Springs | NC |
| USQLR | Laureldale | PA |
| USUA7 | Laurelton | NY |
| USQLH | Laurelville | OH |
| US5BL | Laurence Harbor | NJ |
| USLRX | Laurens | IA |
| USLUS | Laurens | NY |
| USLSC | Laurens | SC |
| USXL2 | Laurie | MO |
| USLAU | Laurier | WA |
| USLRB | Laurinburg | NC |
| USYTI | Laurys Station | PA |
| USAC4 | Lavaca | AR |
| US2LT | Latham | MO |
| USLTM | Latham | NY |
| USLRO | Lathrop | CA |
| USLZH | Lathrop | MO |
| USLTH | Lathrop Wells | NV |
| USL5R | Latimer | IA |
| USLJO | Laton | CA |
| USLT2 | Latonia | KY |
| USTRB | Latrobe | CA |
| USLBE | Latrobe | PA |
| USTTA | Latta | SC |
| US5NC | Lattimore | NC |
| USM7L | Lauderdale | MS |
| US5SL | Lauderdale By The Sea | FL |
| USZF3 | Lauderdale Lakes | FL |
| USLAD | Lauderhill | FL |
| USLGH | Laughlin | NV |
| USLFB | Laughlin Air Force Base | TX |
| USURE | Laurel | DE |
| USLRM | Laurel | MD |
| USLPO | Laporte | IN |