| State Name | County Name | City |
|---|---|---|
| Pennsylvania | Carbon | Lansford |
| California | San Joaquin | Lathrop |
| North Carolina | Scotland | Laurinburg |
| California | Kern | Lamont |
| Texas | Lampasas | Lampasas |
| California | Los Angeles | Lancaster |
| Kentucky | Garrard | Lancaster |
| Massachusetts | Worcester | Lancaster |
| New Hampshire | Coos | Lancaster |
| New York | Erie | Lancaster |
| Ohio | Fairfield | Lancaster |
| Pennsylvania | Lancaster | Lancaster |
| South Carolina | Lancaster | Lancaster |
| Texas | Dallas | Lancaster |
| Wisconsin | Grant | Lancaster |
| Florida | Pasco | Land O' Lakes |
| Ohio | Warren | Landen |
| Wyoming | Fremont | Lander |
| North Carolina | Rowan | Landis |
| Arkansas | Pulaski | Landmark |
| Maryland | Prince George's | Landover |
| South Carolina | Spartanburg | Landrum |
| Massachusetts | Berkshire | Lanesborough |
| Alabama | Chambers | Lanett |
| Maryland | Prince George's | Langley Park |
| Maryland | Prince George's | Lanham |
| Pennsylvania | Montgomery | Lansdale |
| Maryland | Baltimore | Lansdowne |
| Pennsylvania | Delaware | Lansdowne |
| Virginia | Loudoun | Lansdowne |
| Illinois | Cook | Lansing |
| Kansas | Leavenworth | Lansing |
| Michigan | Ingham | Lansing |
| New York | Tompkins | Lansing |
| Florida | Palm Beach | Lantana |
| Texas | Denton | Lantana |
| Michigan | Lapeer | Lapeer |
| Louisiana | St. John the Baptist | Laplace |
| Wyoming | Albany | Laramie |
| Washington | Snohomish | Larch Way |
| New York | Westchester | Larchmont |
| Texas | Webb | Laredo |
| Puerto Rico | Lares | Lares |
| Florida | Pinellas | Largo |
| Maryland | Prince George's | Largo |
| California | Sonoma | Larkfield-Wikiup |
| California | Marin | Larkspur |
| Pennsylvania | Luzerne | Larksville |
| Kansas | Pawnee | Larned |
| Louisiana | Lafourche | Larose |
| Colorado | Bent | Las Animas |
| New Mexico | Dona Ana | Las Cruces |
| California | Orange | Las Flores |
| California | Monterey | Las Lomas |
| Puerto Rico | Las Piedras | Las Piedras |
| New Mexico | San Miguel | Las Vegas |
| Illinois | LaSalle | LaSalle |
| Michigan | Oakland | Lathrup Village |
| Mississippi | Jackson | Latimer |
| Pennsylvania | Westmoreland | Latrobe |
| Florida | Broward | Lauderdale Lakes |
| Florida | Broward | Lauderdale-by-the-Sea |
| Florida | Broward | Lauderhill |
| Nevada | Clark | Laughlin |
| Delaware | Sussex | Laurel |
| Florida | Sarasota | Laurel |
| Maryland | Prince George's | Laurel |
| Mississippi | Jones | Laurel |
| Montana | Yellowstone | Laurel |
| Virginia | Henrico | Laurel |
| South Carolina | Beaufort | Laurel Bay |
| Virginia | Fairfax | Laurel Hill |
| New Jersey | Cumberland | Laurel Lake |
| Pennsylvania | Berks | Laureldale |
| Texas | Cameron | Laureles |
| New Jersey | Middlesex | Laurence Harbor |
| South Carolina | Laurens | Laurens |
| Michigan | Houghton | Laurium |
| Texas | Collin | Lavon |
| California | Los Angeles | Lawndale |
| New Jersey | Camden | Lawnside |
| Pennsylvania | Dauphin | Lawnton |
| Indiana | Marion | Lawrence |
| Kansas | Douglas | Lawrence |
| Massachusetts | Essex | Lawrence |
| New Jersey | Mercer | Lawrence |
| New York | Nassau | Lawrence |
| Pennsylvania | Clearfield | Lawrence |
| Pennsylvania | Erie | Lawrence Park |
| Indiana | Dearborn | Lawrenceburg |
| Kentucky | Anderson | Lawrenceburg |
| Tennessee | Lawrence | Lawrenceburg |
| Georgia | Gwinnett | Lawrenceville |
| Illinois | Lawrence | Lawrenceville |
| New Jersey | Mercer | Lawrenceville |
| Virginia | Brunswick | Lawrenceville |
| Oklahoma | Comanche | Lawton |
| Maryland | Montgomery | Layhill |
| Utah | Davis | Layton |
| Iowa | Scott | Le Claire |
