Cities
- Laytonville
- Le Grand
- Lebec
- Lee Vining
- Leggett
- Lemon Cove
- Lemon Grove
- Lemoore
- Lennox
- Leona Valley
- Leucadia
- Lewiston
- Lincoln
- Linden
- Lindsay
- Little River
- Littlerock
- Live Oak
- Livermore
- Livingston
- Lockeford
- Lockwood
- Lodi
- Loleta
- Loma Linda
- Lomita
- Lompoc
- Lone Pine
- Long Barn
- Long Beach
- Loomis
- Los Alamitos
- Los Alamos
- Los Altos
- Los Altos Hills
- Los Angeles
- Los Banos
- Los Gatos
- Los Molinos
- Los Olivos
- Los Osos
- Lost Hills
- Lotus
- Lower Lake
- Lucerne
- Lucerne Valley
- Lynwood
- Lytle Creek
- Macdoel
- Madera
- Magalia
- Malibu
- Mammoth Lakes
- Manchester
- Manhattan Beach
- Manteca
- Mar Vista
- Marina
- Marina del Rey
- Mariposa
- Markleeville
- Marshall
- Martinez
- Marysville
- Mather
- Maxwell
- Maywood
- McCloud
- McKinleyville
- Meadow Valley
- Meadow Vista
- Mendocino
- Menifee
- Menlo Park
- Mentone
- Merced
- Middletown
- Midpines
- Midway City
- Mill Creek
- Mill Valley
- Millbrae
- Millville
- Milpitas
- Mineral
- Mira Loma
- Miranda
- Mission Hills
- Mission Viejo
- Modesto
- Mojave
- Mokelumne Hill
- Monarch Beach
- Mono Hot Springs
- Monrovia
- Montague
- Montara
- Montclair
- Monte Rio
- Monte Sereno
- Montebello
- Montecito
- Monterey
- Monterey Park
- Montrose
- Moorpark
- Moraga
- Moreno Valley
- Morgan Hill
- Morongo Valley
- Morro Bay
- Moss Beach
- Moss Landing
- Mount Aukum
- Mount Baldy
- Mount Eden
- Mount Hermon
- Mount Shasta
- Mount Wilson
- Mountain Center
- Mountain Mesa
- Mountain Pass
- Mountain Ranch
- Mountain View
- Muir Beach
- Murphys
- Murrieta
- Myers Flat
- Napa
- National City
- Navarro
- Needles
- Nevada City
- Newark
- Newberry Springs
- Newbury Park
- Newcastle
- Newhall
- Newman
- Newport Beach
- Nicasio
- Nice
- Nipomo
- Norco
- Norden
- North Fork
- North Highlands
- North Hills
- North Hollywood
- North Palm Springs
- North San Juan
- Northridge
- Norwalk
- Novato
- Nuevo
- O'Brien
- Oak Glen
- Oak Hills
- Oak Park
- Oak Run
- Oak View
- Oakdale
- Oakhurst
- Oakland
- Oakley
- Oakville
- Occidental
- Oceano
- Oceanside
- Ocotillo
- Ojai
- Olema
- Olivehurst
- Olympic Valley
- Ontario
- Orange
- Orange Cove
- Orangevale
- Orcutt
- Oregon House
- Orinda
- Orland
- Orleans
- Oro Grande
- Oroville
- Oxnard
- Pacheco
- Pacific Beach
- Pacific Grove
- Pacific Palisades
- Pacifica
- Pacoima
- Paicines
- Palermo
- Palm Desert
- Palm Springs
- Palmdale
- Palo Alto
- Palo Cedro
- Palo Verde
- Palomar Mountain
- Palos Verdes Estates
- Panorama City
- Paradise
- Paramount
- Parkfield
- Pasadena
- Paso Robles
- Patterson
- Patton
- Pauma Valley
- Paynes Creek
- Pearblossom
- Pebble Beach
- Penn Valley
- Penngrove
- Penryn
- Perris
- Pescadero
- Petaluma
- Phelan
- Philo
- Pico Rivera
- Piedmont
- Piercy
- Pilot Hill
- Pine Cove
- Pine Grove
- Pine Valley
- Pinecrest
- Pinole
- Pinon Hills
- Pioneer
- Pioneertown
- Piru
- Pismo Beach
- Pittsburg
- Pixley
- Placentia
- Placerville
- Playa del Rey
- Pleasant Grove
- Pleasant Hill
- Pleasanton
- Plymouth
- Point Arena
- Point Reyes Station
- Point Richmond
- Pollock Pines
- Pomona