California - Significance region: Local
| 10 Mile Corral |
| 10th Street Market |
| 27th Street Historic District |
| 52nd Place Historic District |
| 6 Mile Corral |
| 8 Mile Corral |
| Acacia Lodge |
| Acting Superintendent's Headquarters |
| Adin Supply Company |
| Administration Building, Atascadero Colony |
| Ah Louis Store |
| Ainsley, John Colpitts, House No. 3 |
| Ainsworth, Lewis, House |
| A. K. Smiley Public Library |
| Alameda City Hall |
| Alameda County Building and Loan Association Building |
| Alameda Free Library |
| Alameda High School |
| Alameda Veterans' Memorial Building |
| Alberta Candy Factory |
| Albion River Bridge |
| Alexander-Acacia Bridge |
| Alexander, Dr. Franz, House |
| Alexander Theatre |
| Alexandria Hotel and Annex |
| Alford-Nielson House |
| Alf's Blacksmith Shop |
| Alkali Flat Central Historic District |
| Alkali Flat North Historic District |
| Alkali Flat West Historic District |
| Allen, Clifford, House |
| Allen-Sommer-Gage House |
| All Souls Universalist Church |
| Aloha Apartment Hotel |
| Alpine County Courthouse |
| Alta Mesa Farm Bureau Hall |
| Altaville Grammar School |
| Altenheim |
| Alvarado Park |
| Alvarado Terrace Historic District |
| Amador County Hospital Building |
| American Bag Co.-Union Hide Co. |
| American Cash Apartments-American Cash Store |
| American River Grange Hall No. 172 |
| Anaheim Orange and Lemon Association Packing House |
| Andalucia Building |
| Andalusia |
| "Anderson, Eddie ""Rochester,"" House" |
| Anderson Marsh Archeological District |
| Andreasen, F. W.-John Rossen House |
| Andrews, William, House |
| Angel, Myron, House |
| Angels Flight Railway |
| Angels Hotel |
| Angelus Funeral Home |
| Angelus Mesa Branch |
| Anklin Village Archeological Site |
| Archeological Site 4 SLO 834 |
| Archeological Site CA-SBR-140 |
| Archeological Site SMA-151 |
| Ard Eevin |
| Arena Cove Historic District |
| Arlington Branch Library and Fire Hall |
| Armory Hall |
| Armour & Co. Building |
| Arnold and Choate’s Addition-North Florence Heights Historic District |
| Arroyo Grande IOOF Hall |
| Artz Building |
| Ash Mountain Entrance Sign |
| Ashworth-Remillard House |
| Asilomar Conference Grounds Warnecke Historic District |
| Atascadero Printery |
| Atchison, Topeka, and Santa Fe Railroad Station |
| Atchison, Topeka and Santa Fe Railway Passenger and Freight Depot |
| Atherton House |
| Atkinson House |
| Auburn City Hall and Fire House |
| Auburn Fire House No. 1 |
| Auburn Fire House No. 2 |
| Auburn Grammar School |
| Auburn Masonic Temple |
| Auburn Public Library |
| Audiffred Building |
| Auditorium |
| Avenel Cooperative Housing Project |
| Avery, Kenneth Newell, Studio |
| Azteca Theater |
| Aztec Hotel |
| Azusa Civic Center |
| Babcock, Dr. Raymond, House |
| Bachelder, Thomas Foxwell, Barn |
| Backs, Ferdinand, House |
| Bagby Stationhouse, Water Tanks and Turntable |
| Bailey, Jonathan, House |
| Baker and Hamilton |
| Baker House |
| Baker, Pearl, Row House |
| Bakersfield California Building |
| Balboa Inn |
| Balboa Theatre |
Data from United States Park Service and Wikidata
