- Lemon Grove
- Lemoore
- Lennox
- Lenwood
- Lexington Hills
- La Salle
- Lento
- Lion Rock
- Lincoln Village
- Linda
- Lindsay
- Littlerock
- Live Oak
- Livermore
- Lockeford
- Loma Linda
- Loma Rica
- Lomita
- Lompoc
- Lone Pine
- Long Beach
- Loomis
- Los Alamitos
- Los Altos Hills
- Los Gatos
- Lost Hills
- Lower Lake
- Lawrence
- Lonoke
- Loyola Corners