- Lotus
- Lucas Valley
- Lucerne Valley
- Lucia
- Ludlow
- Lynwood Hills
- Lyoth
- Lytton
- Las Juntas
- Los Basqueros Reservoir & Watershed
- Luzon
- Lake Valley
- Lakewood Sierra
- Latrobe
- Leonardi
- Little Norway
- Lower Forni
- La Jolla Ranch
- Lacjac
- Lerona
- Levis
- Locans
- Lone Star
- Logandale
- Lone Star
- Larabee
- Lepoil Rock
- Little River Rock
- Lone Star Junction
- Leadfield