- Lawrenceville, New Jersey
- Lawton, Oklahoma
- Leander, Texas
- Leawood, Kansas
- Lebanon, Missouri
- Lebanon, New Jersey
- Lebanon, Ohio
- Lebanon, Oregon
- Lebanon, Tennessee
- Lee's Summit, Missouri
- Leesburg, Virginia
- Lehi, Utah
- Leland, Michigan
- Lenexa, Kansas
- Lenoir City, Tennessee
- Lenorah, Texas
- Leonardtown, Maryland
- Leonia, New Jersey
- Lewes, Delaware
- Lewiston, Maine
- Lewisville, Texas
- Lexington, Kentucky
- Lexington, Massachusetts
- Lexington, Michigan
- Lexington, Nebraska
- Lexington, South Carolina
- Lexington, Virginia
- Liberty, Missouri
- Lilburn, Georgia
- Lime Springs, Iowa
- Lincoln, Massachusetts
- Lincoln, Nebraska
- Lincolnwood, Illinois
- Lindale, Texas
- Linden, Tennessee
- Lindstrom, Minnesota
- Little Compton, Rhode Island
- Little Elm, Texas
- Little Rock, Arkansas
- Littleton, Colorado
