California - Criteria: A (event)
| Berkeley Hillside Club |
| Berkeley Historic Civic Center District |
| Berwick Manor and Orchard |
| Berylwood |
| Beverly Fairfax Historic District |
| Beverly Hills Women's Club |
| Bidwell Mansion |
| Bird and Dinkelspiel Store |
| Bishop, Ellis, House |
| Black Diamond Mines |
| Black, William, House-SDM-W-12 Locus A (CA-SDI-4669) |
| Blythe Intaglios |
| Boca Dam |
| Bodie Historic District |
| Bok Kai Temple |
| Bolton Hall |
| Bono's Restaurant and Deli |
| Boone's University School |
| Borland House |
| Boulevard Park |
| Bourn-Roth Estate |
| Bower Cave |
| Bowerman Barn |
| Bowles Hall |
| Boyle Hotel-Cummings Block |
| Bradford House |
| Branciforte Adobe |
| Brea City Hall and Park |
| Bridgeport Covered Bridge |
| Brighton School |
| Brix, H. H., Mansion |
| Broadway Theater and Commercial District |
| Brockman Building and New York Cloak and Suit House (annex) |
| BROTHER JONATHAN (Shipwreck Site) |
| Buck Camp Patrol Cabin |
| Builders Exchange Building |
| Building at 465 Tenth St. |
| Building at 816 South Grand Avenue |
| Bungalow Court at 1516 N. Serrano Ave |
| Bungalow Court at 1544 N. Serrano Avenue |
| Bungalow Court at 1554 N. Serrano Avenue |
| Bungalow Court at 1721 N. Kingsley Drive |
| Cabot's Old Indian Pueblo Museum |
| Cabrillo National Monument |
| Cady House |
| Cahuenga Branch |
| Calaveras County Bank |
| Calaveras County Courthouse |
| Caledonia Adobe |
| Calexico Carnegie Library |
| Calico Mountains Archeological District |
| California Cotton Mills Company Factory |
| California Governor's Mansion |
| California Nursery Co. Guest House |
| California Quadrangle |
| California State Capitol |
| California Theatre, The |
| Calpak Plant No. 11 |
| Cameron-Stanford House |
| Camp 4 |
| Campbell Union Grammar School |
| Campbell Union High School Historic District |
| Camp Curry Historic District |
| Campo de Cahuenga |
| Canon School |
| Canterbury Apartment Hotel, The |
| Captain Jack's Stronghold |
| Carlsbad Santa Fe Depot |
| Carmel Mission |
| Carnegie, Andrew, Library |
| Carnegie Free Library |
| Carnegie Library |
| Carnegie Library |
| Carnegie Public Library Building |
| Carroll Avenue, 1300 Block |
| Casa de Esperanza |
| Casa de Rosas |
| Casa de Tableta |
| Case Study House No. 1 |
| Case Study House No. 10 |
| Case Study House No. 16 |
| Case Study House No. 20 |
| Case Study House No. 21 |
| Case Study House No. 22 |
| Case Study House No. 23C |
| Case Study House No. 28 |
| Case Study House No. 9 |
| Castro, Jose Joaquin, Adobe |
| Castroville Japanese Language School |
| C.A. THAYER |
| Cattle Cabin |
| Centerville Schoolhouse |
| Centinela Adobe |
| Central Embarcadero Piers Historic District |
| Centrella Hotel |
| Chamber of Commerce Building |
| Chapman, A. H., House |
| Chateau Chevalier |
| Chateau Pacheteau |
| Chicano Park |
Data from United States Park Service and Wikidata
