A
- Abbott
- Aberdeen
- Abrams Lake Mobile Estates
- Academy
- Acampo
- Accent Homes Mobile
- Acebedo
- Acolita
- Acorn
- Acorn Lodge
- Actis
- Acton
- Adams
- Adams Square
- Adams Station
- Adela
- Adelaida
- Adelanto
- Adin
- Aerial Acres
- Aetna Springs
- Afton
- Ager
- Agnew
- Agoura
- Agoura Hills
- Agra
- Agua Dulce
- Agua Fria
- Aguanga
- Ahwahnee
- Ainsworth Corner
- Akers
- Alabama Hills
- Alameda
- Alamitos
- Alamo
- Alamo Oaks
- Alamorio
- Alba
- Albany
- Alberhill
- Albion
- Albrae
- Alder Creek
- Alderglen Springs
- Alderpoint
- Alder Springs
- Alemandra
- Alford Place
- Algerine
- Algoso
- Alhambra
- Alicia
- Alico
- Aliso Viejo
- Alleghany
- Allen
- Allendale
- Allensworth
- Alliance
- Alliance Redwood
- Almanor
- Almonte
- Alondra Park
- Alpaugh
- Alphine Village
- Alpine
- Alpine Meadows
- Alpine Village
- Alsace
- Alta
- Altadena
- Alta Loma
- Alta Mesa
- Altamont
- Alta Sierra
- Alta Sierra
- Altaville
- Alta Vista
- Alton
- Alturas
- Alum Rock
- Alviso
- Amador City
- Amber Hills
- Ambler
- Ambler Park
- Amboy
- Ambrose
- American Canyon
- American House
- Amesti
- Amos
- Amsterdam
- Anaheim
- Anaheim Royal Mobile Home Park
- Anchor Bay
- Anderson
- Anderson Springs
- Andesite
- Andover
- Andrade
- Andrade Corner
- Angels
- Angels Camp
- Angelus Oaks
- Angiola
- Angwin
- Anita
- Annapolis
- Annette
- Ansel
- Antelope
- Antelope Acres
- Antelope Center
- Antelope Hills
- Antioch
- Antlers
- Anza
- Anza
- Apex
- Apollo
- Applegate
- Apple Valley
- Apple Valley Highlands
- Aptos
- Arabian Gardens Mobile Home Park
- Arastraville
- Araz Junction
- Arbios
- Arboga
- Arbor
- Arbuckle
- Arcade
- Arcadia
- Arcata
- Archer
- Arcilla
- Arden Town
- Arena
- Argos
- Arguello
- Argus
- Arlanza
- Arlington
- Arlington Oaks
- Arlynda Corners
- Armistead
- Armona
- Armstrong
- Arnold
- Aromas
- Arrowbear Lake
- Arrowbear Lake Park
- Arrowhead Equestrian Estates
- Arrowhead Highlands
- Arrowhead Junction
- Arrowhead Springs
- Arroyo Center
- Arroyo Grande
- Arroyo Vista
- Artesia
- Artois
- Arvin
- Asco
- Ash Creek Junction
- Ashford Junction
- Ash Hill
- Ashland
- Ashrama
- Aspendell
- Aspen Springs
- Aspen Valley
- Asti
- Asuncion
- Atascadero
- Atherton
- Athlone
- Atlanta
- Atlas
- Atolia
- Atwater
- Atwood
- Auberry
- Auburn
- Auckland
- August
- Aukum
- Avalon
- Avalon Village
- Avena
- Avenal
- Avery
- Avery Place
- Avila Beach
- Avila Place
- Avocado
- Avocado Heights
- Avon
- Azure Vista
- Azusa