- Laguna Niguel, California
- Lake Charles, Louisiana
- Lake City, Michigan
- Lake Dallas, Texas
- Lake Geneva, Wisconsin
- Lake Jackson, Texas
- Lake Lure, North Carolina
- Lake Orion, Michigan
- Lake Placid, Florida
- Lake Worth, Florida
- Lakeland, Florida
- Lakewood Ranch, Florida
- Lakewood, New Jersey
- Lakewood, Pennsylvania
- Lamar, Arkansas
- Lamesa, Texas
- Lancaster, Texas
- Landover Hills, Maryland
- Landover, Maryland
- Lanesborough, Massachusetts
- Langston, Oklahoma
- Lansing, Michigan
- Las Cruces, New Mexico
- Las Vegas, Nevada
- Latonia, Kentucky
- Latrobe, Pennsylvania
- Laurel, Maryland
- Laverne, Oklahoma
- Lawrence Township, New Jersey
- Lawrence, Kansas
- Lawrenceville, Georgia
- Lawrenceville, New Jersey
- Lawton, Oklahoma
- Leander, Texas
- Leawood, Kansas
- Lebanon, Ohio
- Lebanon, Oregon
- Lebanon, Tennessee
- Lee's Summit, Missouri
- Lenexa, Kansas