| Name of place | Number of counties | Principal county | Lower zip code | Upper zip code | | La Ballona | 1 | Los Angeles County | 90232 | |
| La Barr Meadows | 1 | Nevada County | 95945 | |
| Labranza | 1 | Merced County | | |
| La Brea | 1 | Los Angeles County | | |
| La Cañada | 1 | Los Angeles County | 91011 | |
| La Cañada Flintridge | 1 | Los Angeles County | 91011 | |
| Lacjac | 1 | Fresno County | | |
| La Conchita | 1 | Ventura County | | |
| La Costa | 1 | Los Angeles County | 90265 | |
| La Crescenta | 1 | Los Angeles County | 91214 | |
| La Crescenta-Montrose | 1 | Los Angeles County | | |
| La Cresta | 1 | Kern County | 93305 | |
| La Cresta | 1 | San Diego County | 92020 | |
| La Delta | 1 | San Bernardino County | | |
| Ladera | 1 | San Mateo County | 94028 | |
| Ladera Heights | 1 | Los Angeles County | 90045 | |
| Ladera Ranch | 1 | Orange County | 92694 | |
| Lafayette | 1 | Contra Costa County | 94549 | |
| La Fetra | 1 | Los Angeles County | 91740 | |
| La Fresa | 1 | Los Angeles County | | |
| Lagol | 1 | Ventura County | | |
| La Grange | 1 | Stanislaus County | 95329 | |
| Laguna | 1 | Los Angeles County | | |
| Laguna Beach | 1 | Orange County | 92607 | 77 |
| Laguna Creek | 1 | Sacramento County | | |
| Laguna Dam | 1 | Imperial County | 85369 | |
| Laguna Hills | 1 | Orange County | 92653 | |
| Laguna Junction | 1 | San Diego County | | |
| Laguna Lake | 1 | San Luis Obispo County | 93401 | |
| Laguna Niguel | 1 | Orange County | 92677 | |
| Laguna West | 1 | Sacramento County | | |
| Laguna West-Lakeside | 1 | Sacramento County | | |
| Laguna Woods | 1 | Orange County | 92653 | |
| Lagunita | 1 | Orange County | | |
| Lagunitas | 1 | Marin County | 94938 | |
| Lagunitas-Forest Knolls | 1 | Marin County | | |
| La Habra | 1 | Orange County | 90631 | |
| La Habra Heights | 1 | Los Angeles County | 90631 | |
| La Honda | 1 | San Mateo County | 94020 | |
| La Honda Park | 1 | Calaveras County | | |
| Lairport | 1 | Los Angeles County | 90245 | |
| La Jolla | 1 | Orange County | 92670 | |
| La Jolla | 1 | San Diego County | 92037 | |
| La Jolla Amago | 1 | San Diego County | | |
| La Jolla Indian Reservation | 1 | San Diego County | 92263 | |
| La Jolla Mesa | 1 | San Diego County | | |
| La Jolla Ranch | 1 | Fresno County | | |
| La Joya | 1 | Los Angeles County | | |
| Lake Almanor Country Club | 1 | Plumas County | | |
| Lake Almanor Peninsula | 1 | Plumas County | | |
| Lake Almanor West | 1 | Plumas County | | |
| Lake Alpine | 1 | Alpine County | 95223 | |
| Lake Arrowhead | 1 | San Bernardino County | 92352 | |
| Lake City | 1 | Modoc County | 96115 | |
| Lake City | 1 | Nevada County | | |
| Lake Davis | 1 | Plumas County | | |
| Lake Elsinore | 1 | Riverside County | 92530 | |
| Lake Forest | 1 | Orange County | 92630 | |
| Lake Forest | 1 | Placer County | 95730 | |
| Lakehead | 1 | Shasta County | 96051 | |
| Lakehead-Lakeshore | 1 | Shasta County | | |
| Lake Henshaw | 1 | San Diego County | 92070 | |
| Lake Hills Estates | 1 | El Dorado County | 95630 | |
| Lake Hughes | 1 | Los Angeles County | 93532 | |
| Lake Isabella | 1 | Kern County | 93240 | |
| Lake Kirkwood | 1 | El Dorado County | 95646 | |
| Lakeland Village | 1 | Riverside County | 92330 | |
| Lake Los Angeles | 1 | Los Angeles County | 93550 | |
| Lake Majella | 1 | Monterey County | | |
| Lake Mary | 1 | Mono County | 93546 | |
| Lake Morena Village | 1 | San Diego County | 92006 | |
| Lake Nacimiento | 1 | San Luis Obispo County | | |
| Lake Nokopen | 1 | Lassen County | 95603 | |
| Lake of the Pines | 1 | Nevada County | | |
| Lake of the Woods | 1 | Kern County | 93225 | |
| Lakeport | 1 | Lake County | 95453 | |
| Lake San Marcos | 1 | San Diego County | 92069 | |
| Lake Sherwood | 1 | Los Angeles County | 91361 | |
| Lakeshore | 1 | Fresno County | 93634 | |
| Lakeshore | 1 | Shasta County | | |
| Lakeside | 1 | San Diego County | 92040 | |
| Lakeside Farms | 1 | San Diego County | 92040 | |
| Lakeside Park | 1 | Los Angeles County | | |
| Lake Tahoe Airport | 1 | El Dorado County | 95731 | |
| Lake Tamarisk | 1 | Riverside County | 92239 | |
| Lake Valley | 1 | El Dorado County | | |
| Lakeview | 1 | Kern County | | |
| Lakeview | 1 | Kern County | 93307 | |
| Lakeview | 1 | Riverside County | 92353 | |
| Lakeview | 1 | San Diego County | 92040 | |
| Lakeview Hot Springs | 1 | Riverside County | | |
| Lakeview Junction | 1 | Modoc County | | |
| Lake View Terrace | 1 | Los Angeles County | 91342 | |
| Lakeville | 1 | Sonoma County | 94952 | |
| Lake Wildwood | 1 | Nevada County | | |
| Lakewood | 1 | Los Angeles County | 90712 | 16 |
| Lakewood | 1 | Los Angeles County | | |
| Lakewood Park | 1 | Los Angeles County | | |
| Lakin | 1 | Siskiyou County | | |
| La Loma | 1 | Stanislaus County | 95350 | |
| Lamanda | 1 | Los Angeles County | | |
| Lamanda Park | 1 | Los Angeles County | | |
| Lambert | 1 | Sacramento County | | |
| Lambert | 1 | Sonoma County | 95448 | |
| La Mesa | 1 | San Diego County | 91941 | 44 |
| La Metro | 1 | Los Angeles County | | |
| La Mirada | 1 | Los Angeles County | 90638 | |
| La Mirada East | 1 | Los Angeles County | 90638 | |
| Lamoine | 1 | Shasta County | | |
| Lamont | 1 | Kern County | 93241 | |
| Lanare | 1 | Fresno County | 93656 | |
| Lancaster | 1 | Los Angeles County | 93534 | 86 |
| Lancha Plana | 1 | Amador County | | |
| Landco | 1 | Kern County | | |
| Landers | 1 | San Bernardino County | 92285 | |
| Land Park | 1 | Sacramento County | 95822 | |
| Landscape | 1 | Alameda County | 94707 | |
| Lane | 1 | San Joaquin County | | |
| Lane Mill | 1 | Inyo County | | |
| Lanes | 1 | Amador County | | |
| Lanfair | 1 | San Bernardino County | | |
| Lang | 1 | Los Angeles County | | |
| Lansdale | 1 | Marin County | 94960 | |
| La Palma | 1 | Orange County | 90623 | |
| La Panza | 1 | San Luis Obispo County | 93453 | |
| La Patera | 1 | Santa Barbara County | 93117 | |
| Lapis | 1 | Monterey County | | |
| La Playa | 1 | San Diego County | | |
| La Porte | 1 | Plumas County | 95981 | |
| La Posta Indian Reservation | 1 | San Diego County | 92071 | |
| La Presa | 1 | San Diego County | 92077 | |
| La Puente | 1 | Los Angeles County | 91744 | 49 |
| La Quinta | 1 | Riverside County | 92253 | |
| Larabee | 1 | Humboldt County | | |
| Larabee Ranch | 1 | Humboldt County | 95569 | |
| La Rambla | 1 | Los Angeles County | | |
| Larchmont Riviera | 1 | Sacramento County | 95826 | |
| Largo | 1 | Mendocino County | | |
| Largo Vista | 1 | Los Angeles County | | |
| La Riviera | 1 | Sacramento County | | |
| Larkfield | 1 | Sonoma County | 95403 | |
| Larkfield-Wikiup | 1 | Sonoma County | | |
| Larkmead | 1 | Napa County | | |
| Larkspur | 1 | Marin County | 94939 | |
| Larwin Plaza | 1 | Solano County | 94590 | |
| La Salle | 1 | Santa Barbara County | | |
| Lasco | 1 | Lassen County | | |
| Las Cruces | 1 | Santa Barbara County | 93117 | |
| La Selva Beach | 1 | Santa Cruz County | 95076 | |
| Las Flores | 1 | Los Angeles County | 90265 | |
| Las Flores | 1 | Orange County | | |
| Las Flores | 1 | San Diego County | | |
| Las Flores | 1 | Tehama County | 96035 | |
| Las Gallinas | 1 | Marin County | | |
| La Sierra | 1 | Riverside County | 92505 | |
| La Sierra Heights | 1 | Riverside County | | |
| Las Juntas | 1 | Contra Costa County | | |
| Las Lomas | 1 | Monterey County | 95076 | |
| Las Lomas | 1 | Sonoma County | 95441 | |
| Las Palmas | 1 | Fresno County | | |
| Las Posas Estates | 1 | Ventura County | 93010 | |
| Lassen | 1 | Lassen County | | |
| Lassen View | 1 | Plumas County | | |
| Lassen Volcanic National Park | 4 | Lassen County | 96063 | |
| Lassen Volcanic National Park | 4 | Plumas County | 96063 | |
| Lassen Volcanic National Park | 4 | Shasta County | 96063 | |
| Lassen Volcanic National Park | 4 | Tehama County | 96063 | |
| Last Chance | 1 | Placer County | | |
| Las Vinas | 1 | San Joaquin County | | |
| Lathrop | 1 | San Joaquin County | 95330 | |
| La Tijera | 1 | Los Angeles County | 90043 | |
| Latin | 1 | Los Angeles County | | |
| Laton | 1 | Fresno County | 93242 | |
| Latrobe | 1 | El Dorado County | 95682 | |
| La Tuna Canyon | 1 | Los Angeles County | 91352 | |
| Laughlin | 1 | Mendocino County | | |
| Laurel | 1 | Alameda County | 94619 | |
| Laurel | 1 | San Mateo County | | |
| Laurel | 1 | Santa Cruz County | 95030 | |
| Laurel Canyon | 1 | Los Angeles County | 91605 | |
| Lava Beds National Monument | 2 | Modoc County | 96134 | |
| Lava Beds National Monument | 2 | Siskiyou County | 96134 | |
| La Verne | 1 | Los Angeles County | 91750 | |
| Lavic | 1 | San Bernardino County | | |
| La Vina | 1 | Madera County | 93637 | |
| Lawndale | 1 | Los Angeles County | 90260 | |
| Lawndale | 1 | Sonoma County | 95452 | |
| Lawndale Army Missile Plant | 1 | Los Angeles County | 90260 | |
| Lawrence | 1 | Santa Clara County | | |
| Laws | 1 | Inyo County | 93514 | |
| Laytonville | 1 | Mendocino County | 95454 | |
| Laytonville Rancheria | 1 | Mendocino County | 95454 | |
| Lazy Acre | 1 | Kern County | 93317 | |
| Leadfield | 1 | Inyo County | | |
| Leaf | 1 | Siskiyou County | | |
| Leavitt | 1 | Lassen County | | |
| Lebec | 1 | Kern County | 93243 | |
| Leesdale | 1 | Ventura County | | |
| Leesville | 1 | Colusa County | 95987 | |
| Lee Vining | 1 | Mono County | 93541 | |
| Leffingwell | 1 | Los Angeles County | | |
| Leggett | 1 | Mendocino County | 95585 | |
| Le Grand | 1 | Merced County | 95333 | |
| Leimert Park | 1 | Los Angeles County | 90062 | |
| Leisure Town | 1 | Solano County | | |
| Leisure World | 1 | Contra Costa County | | |
| Leisure World | 1 | Orange County | 92653 | |
| Lemon | 1 | Ventura County | | |
| Lemona | 1 | Riverside County | | |
| Lemoncove | 1 | Tulare County | 93244 | |
| Lemon Cove | 1 | Tulare County | | |
| Lemon Grove | 1 | San Diego County | 91945 | 46 |
| Lemon Heights | 1 | Orange County | 92705 | |
| Lemoore | 1 | Kings County | 93245 | |
| Lemoore Naval Air Station | 2 | Fresno County | 93245 | |
| Lemoore Naval Air Station | 2 | Kings County | 93245 | |
| Lennox | 1 | Los Angeles County | 90304 | |
| Lento | 1 | Santa Barbara County | | |
| Lenwood | 1 | San Bernardino County | 92311 | |
| Leon | 1 | San Bernardino County | | |
| Leonardi | 1 | El Dorado County | | |
| Leona Valley | 1 | Los Angeles County | 93551 | |
| Lerdo | 1 | Kern County | | |
| Lerona | 1 | Fresno County | | |
| Letterman | 1 | San Francisco County | 94129 | |
| Letterman Army Medical Center | 1 | San Francisco County | 94129 | |
| Leucadia | 1 | San Diego County | 92024 | |
| Levee | 1 | Kern County | | |
| Levis | 1 | Fresno County | | |
| Lewiston | 1 | Trinity County | 96052 | |
| Lexington Hills | 1 | Santa Clara County | | |
| Liberty | 1 | Sonoma County | | |
| Liberty Acres | 1 | Los Angeles County | 90250 | |
| Liberty Farms | 1 | Solano County | 95620 | |
| Liberty Park | 1 | Orange County | | |
| Libfarm | 1 | Solano County | 95620 | |
| Lick | 1 | Santa Clara County | | |
| Lick Observatory | 1 | Santa Clara County | | |
| Lido Isle | 1 | Orange County | 92663 | |
| Likely | 1 | Modoc County | 96116 | |
| Likely Rancheria | 1 | Modoc County | 96116 | |
| Lilac | 1 | San Diego County | | |
| Lily Cup | 1 | Riverside County | | |
| Limco | 1 | Ventura County | 93060 | |
| Lime Spur | 1 | Tuolumne County | | |
| Limon | 1 | Ventura County | | |
| Limoneira | 1 | Ventura County | | |
| Linbrook | 1 | Orange County | | |
| Lincoln | 1 | Placer County | 95648 | |
| Lincoln Acres | 1 | San Diego County | 91947 | |
| Lincoln Crest | 1 | Los Angeles County | | |
| Lincoln Heights | 1 | Los Angeles County | 90031 | |
| Lincoln Park | 1 | Los Angeles County | | |
| Lincoln Village | 1 | Los Angeles County | 90810 | |
| Lincoln Village | 1 | Sacramento County | 95827 | |
| Lincoln Village | 1 | San Joaquin County | 95207 | |
| Lind Cove | 1 | Tulare County | 93221 | |
| Linda | 1 | Yuba County | 95901 | |
| Linda Mar | 1 | San Mateo County | 94044 | |
| Linda Mar Gardens | 1 | San Diego County | 92075 | |
| Linda Vista | 1 | Los Angeles County | | |
| Linda Vista | 1 | San Diego County | 92111 | |
| Linda Vista | 1 | Santa Clara County | 95127 | |
| Linden | 1 | San Joaquin County | 95236 | |
| Linden Avenue | 1 | San Mateo County | 94080 | |
| Lindenwood | 1 | San Mateo County | 94025 | |
| Lindsay | 1 | Tulare County | 93247 | |
| Lingard | 1 | Merced County | 95340 | |
| Linne | 1 | San Luis Obispo County | | |
| Linnell | 1 | Tulare County | 93277 | |
| Linnie | 1 | Inyo County | | |
| Lira | 1 | Sutter County | | |
| Liskey | 1 | Modoc County | | |
| Lisko | 1 | Tulare County | | |
| List | 1 | Tulare County | | |
| Litchfield | 1 | Lassen County | 96117 | |
| Little Grass Valley | 1 | Plumas County | | |
| Little Lake | 1 | Inyo County | 93542 | |
| Little Lake | 1 | Riverside County | 92343 | |
| Little Morongo Heights | 1 | San Bernardino County | 92256 | |
| Little Norway | 1 | El Dorado County | 95721 | |
| Little Penny | 1 | Mendocino County | | |
| Little Reed Heights | 1 | Marin County | 94920 | |
| Littleriver | 1 | Mendocino County | 95456 | |
| Littlerock | 1 | Los Angeles County | 93543 | |
| Little Shasta | 1 | Siskiyou County | 96064 | |
| Little Valley | 1 | Lassen County | 96053 | |
| Live Oak | 1 | Sacramento County | | |
| Live Oak | 1 | Santa Cruz County | 95062 | |
| Live Oak | 1 | Sutter County | 95953 | |
| Live Oak Acres | 1 | Ventura County | 93022 | |
| Live Oak Canyon | 1 | Los Angeles County | 91750 | |
| Live Oak Springs | 1 | San Diego County | 92062 | |
| Livermore | 1 | Alameda County | 94550 | |
| Livingston | 1 | Merced County | 95334 | |
| Llanada | 1 | San Benito County | | |
| Llano | 1 | Los Angeles County | 93544 | |
| Lobitos | 1 | San Mateo County | 94019 | |
| Lobo | 1 | Orange County | 90680 | |
| Locans | 1 | Fresno County | | |
| Loch Lomond | 1 | Lake County | 95426 | |
| Locke | 1 | Sacramento County | 95690 | |
| Lockeford | 1 | San Joaquin County | 95237 | |
| Lockhart | 1 | San Bernardino County | 92347 | |
| Lockwood | 1 | Monterey County | 93932 | |
| Locust | 1 | Marin County | 94941 | |
| Lodgepole | 1 | Lassen County | | |
| Lodge Pole | 1 | Tulare County | 93262 | |
| Lodi | 1 | San Joaquin County | 95240 | |
| Lodi Junction | 1 | San Joaquin County | | |
| Lodoga | 1 | Colusa County | 95979 | |
| Loftus | 1 | Shasta County | 96051 | |
| Logan | 1 | San Benito County | | |
| Logandale | 1 | Glenn County | | |
| Logan Heights | 1 | San Diego County | | |
| Loganville | 1 | Sierra County | | |
| Lois | 1 | Tulare County | | |
| Lokern | 1 | Kern County | | |
| Lokoya | 1 | Napa County | | |
| Loleta | 1 | Humboldt County | 95551 | |
| Loma | 1 | Los Angeles County | 90814 | |
| Loma | 1 | Tulare County | | |
| Loma Linda | 1 | San Bernardino County | 92354 | |
| Loma Mar | 1 | San Mateo County | 94021 | |
| Loma Portal | 1 | San Diego County | | |
| Loma Rica | 1 | Yuba County | 95901 | |
| Lomas Santa Fe | 1 | San Diego County | 92075 | |
| Loma Verde | 1 | Marin County | 94947 | |
| Lombard | 1 | Napa County | | |
| Lomita | 1 | Los Angeles County | 90717 | |
| Lomita Park | 1 | San Mateo County | 94066 | |
| Lomo | 1 | Butte County | | |
| Lomo | 1 | Sutter County | 95953 | |
| Lompico | 1 | Santa Cruz County | 95018 | |
| Lompoc | 1 | Santa Barbara County | 93436 | |
| Lompoc North | 1 | Santa Barbara County | | |
| Lompoc Northwest | 1 | Santa Barbara County | | |
| London | 1 | Tulare County | 93618 | |
| Lone Pine | 1 | Inyo County | 93545 | |
| Lone Pine Rancheria | 1 | Inyo County | 95804 | |
| Lone Star | 1 | Fresno County | | |
| Lone Star | 1 | Glenn County | | |
| Lone Star Junction | 1 | Humboldt County | | |
| Lone Wolf Colony | 1 | San Bernardino County | | |
| Long Barn | 1 | Tuolumne County | 95335 | |
| Long Beach | 1 | Los Angeles County | 90801 | 53 |
| Long Beach Airport | 1 | Los Angeles County | 90808 | |
| Long Beach Naval Regional Medical Center | 1 | Los Angeles County | 90822 | |
| Long Beach Naval Shipyard | 1 | Los Angeles County | 90822 | |
| Long Beach Naval Station | 1 | Los Angeles County | 90822 | |
| Longvale | 1 | Mendocino County | 95490 | |
| Longview | 1 | Los Angeles County | 93553 | |
| Longville | 1 | Plumas County | | |
| Lonoak | 1 | Monterey County | 93930 | |
| Lonoke | 1 | Santa Clara County | 95020 | |
| Lonsmith | 1 | Kern County | | |
| Lookout | 1 | Modoc County | | |
| Lookout | 1 | Modoc County | 96054 | |
| Lookout Rancheria | 1 | Modoc County | 96054 | |
| Loomis | 1 | Placer County | 95650 | |
| Loomis Corners | 1 | Shasta County | 96001 | |
| Loop | 1 | Los Angeles County | 90280 | |
| Loope | 1 | Alpine County | | |
| Loraine | 1 | Kern County | 93518 | |
| Loree Estates | 1 | Santa Clara County | 95014 | |
| Lorenzo | 1 | Alameda County | 94580 | |
| Lorenzo Station | 1 | Alameda County | | |
| Lort | 1 | Tulare County | | |
| Los Alamitos | 1 | Orange County | 90720 | |
| Los Alamitos Junction | 1 | Orange County | | |
| Los Alamitos Naval Air Station | 1 | Orange County | 90720 | |
| Los Alamos | 1 | Santa Barbara County | 93440 | |
| Los Altos | 1 | Santa Clara County | 94022 | |
| Los Altos Hills | 1 | Santa Clara County | 94022 | |
| Los Altos Terrace | 1 | Los Angeles County | | |
| Los Amigos | 1 | Los Angeles County | 90242 | |
| Los Angeles | 1 | Los Angeles County | 90001 | 99 |
| Los Angeles Air Force Station | 1 | Los Angeles County | 90009 | |
| Los Angeles International Airport | 1 | Los Angeles County | 90009 | |
| Los Angeles Naval Support Activity | 1 | Los Angeles County | 90822 | |
| Los Banos | 1 | Merced County | 93635 | |
| Los Berros | 1 | San Luis Obispo County | 93420 | |
| Los Carneros | 1 | Napa County | 94559 | |
| Los Cerritos | 1 | Los Angeles County | | |
| Los Coyotes Indian Reservation | 1 | San Diego County | 92263 | |
| Los Deltos | 1 | Fresno County | 93622 | |
| Los Feliz | 1 | Los Angeles County | 90027 | |
| Los Gatos | 1 | Santa Clara County | 95030 | |
| Los Medanos | 1 | Contra Costa County | | |
| Los Molinos | 1 | Tehama County | 96055 | |
| Los Nietos | 1 | Los Angeles County | 90606 | |
| Los Nietos Junction | 1 | Los Angeles County | | |
| Los Olivos | 1 | Santa Barbara County | 93441 | |
| Los Osos | 1 | San Luis Obispo County | 93402 | |
| Los Padres | 1 | San Luis Obispo County | 93401 | |
| Los Posas Park | 1 | Ventura County | 93010 | |
| Los Ranchitos | 1 | Marin County | 94903 | |
| Los Robles | 1 | Tehama County | | |
| Los Serranos | 1 | San Bernardino County | 91709 | |
| Lost City | 1 | Calaveras County | | |
| Los Terrentos | 1 | San Diego County | | |
| Lost Hills | 1 | Kern County | 93249 | |
| Lost Lake | 1 | Riverside County | 92225 | |
| Los Trancos Woods | 1 | San Mateo County | 94026 | |
| Los Tules | 1 | San Diego County | | |
| Lotus | 1 | El Dorado County | 95651 | |
| Lovdal | 1 | Yolo County | | |
| Lovelock | 1 | Butte County | | |
| Lowell | 1 | Napa County | | |
| Lower Forni | 1 | El Dorado County | | |
| Lower Lake | 1 | Lake County | 95457 | |
| Lower Town | 1 | Mono County | | |
| Lowrey | 1 | Tehama County | | |
| Loyalton | 1 | Sierra County | 96118 | |
| Loyola | 1 | Santa Clara County | 94022 | |
| Loyola Corners | 1 | Santa Clara County | | |
| Lucas Valley | 1 | Marin County | 94903 | |
| Lucas Valley-Marinwood | 1 | Marin County | | |
| Lucca | 1 | Tulare County | | |
| Lucerne | 1 | Kings County | | |
| Lucerne | 1 | Lake County | 95458 | |
| Lucerne Valley | 1 | San Bernardino County | 92356 | |
| Lucia | 1 | Monterey County | 93920 | |
| Ludlow | 1 | San Bernardino County | 92338 | |
| Lugo | 1 | Los Angeles County | 90023 | |
| Lugo | 1 | San Bernardino County | | |
| Lumer | 1 | Tulare County | | |
| Lumpkin | 1 | Butte County | | |
| Lunada Bay | 1 | Los Angeles County | 90275 | |
| Lundy | 1 | Mono County | 93541 | |
| Lushmeadows Mountain Estates | 1 | Mariposa County | 95338 | |
| Luther | 1 | Santa Clara County | | |
| Luther Burbank | 1 | Sonoma County | 95402 | |
| Luther Junction | 1 | Santa Clara County | | |
| Luzon | 1 | Contra Costa County | | |
| Lyla | 1 | Kern County | | |
| Lynwood | 1 | Los Angeles County | 90262 | |
| Lynwood Gardens | 1 | Los Angeles County | 90262 | |
| Lynwood Hills | 1 | San Diego County | 92010 | |
| Lyonsville | 1 | Tehama County | | |
| Lyoth | 1 | San Joaquin County | | |
| Lytle Creek | 1 | San Bernardino County | 92358 | |
| Lytton | 1 | Sonoma County | 95448 | |
|