California - Significance region: Local
| Branciforte Adobe |
| Brannan, Sam, Cottage |
| Brawn, Charles A., House |
| Brea City Hall and Park |
| Brewster Building |
| Brewster-Dutra House |
| Brewster House |
| Bricker Building, The |
| Brick Row |
| Brighton School |
| Bristol-Cypress Historic District |
| Britt, Eugene W., House |
| Brix, H. H., Mansion |
| Brockman Building and New York Cloak and Suit House (annex) |
| Brooklyn Presbyterian Church |
| Brossart, John F. and Julia House |
| Brown, Allan, Site |
| Brown, Jackson Fay, House |
| Brown, John Stanford, House |
| Bruff's Rock Petroglyph Site |
| Bryan Court |
| Bryson Apartment Hotel |
| Buck Camp Patrol Cabin |
| Buck, Frank LaVerne, House |
| Buckridge Ranch House |
| Buck, Will H., House |
| Buford House |
| Buhach Grammar School |
| Builders Exchange Building |
| Building at 1735-1737 Webster Street |
| Building at 1813-1813B Sutter Street |
| Building at 1840-1842 Eddy Street |
| Building at 27-29 Fountain Alley |
| Building at 33-35 Beideman Place |
| Building at 45-57 Beideman Place |
| Building at 465 Tenth St. |
| Building at 735 Market Street |
| Building at 816 South Grand Avenue |
| Bumann Ranch |
| 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 |
| Bungalow Heaven Historic District |
| Buon Gusto Sausage Factory |
| Burnham-Marston House |
| Burns, Irene, House |
| Burr House |
| Burro Schmidt's Tunnel |
| Butterfield, John A., House |
| Cabin Creek Ranger Residence and Dormitory |
| Cabot's Old Indian Pueblo Museum |
| CABRILLO (Ferry) |
| Cahuenga Branch |
| CA-LAN-1258 |
| CA-LAN-1302 |
| CA-LAN-1946 |
| CA-LAN-441 |
| CA-LAN-540 |
| Calaveras County Bank |
| Calaveras County Courthouse |
| Calaveritas Creek Bridge |
| Caledonia Adobe |
| Calexico Carnegie Library |
| California Club, The |
| California Cotton Mills Company Factory |
| California Federation of Women’s Clubs Grove Hearthstone |
| California Granite Company |
| California Hotel |
| California Nursery Co. Guest House |
| California Theatre, The |
| Call-Booth House |
| Calleguas Creek Site |
| Calpak Plant No. 11 |
| Calvary Presbyterian Church |
| Camarillo Ranch House |
| Camera Obscura |
| Cameron-Stanford House |
| Campbell Union Grammar School |
| Campbell Union High School Historic District |
| Camp Curry Historic District |
| Canon School |
| Canterbury Apartment Hotel, The |
| Capitol Tower |
| Carey House |
| Carling, Foster, House |
| Carlotta Hotel |
| Carlsbad Santa Fe Depot |
| Carly, J.C., House |
| Carmelita Court |
| Carmel Valley Road-Boronda Road Eucalyptus Tree Row |
| Carnegie, Andrew, Library |
| Carnegie Free Library |
| Carnegie Library |
| Carnegie Library |
| Carnegie Public Library Building |
| Carneros Creek Bridge on Old Sonoma Road |
| Carr House |
| Carriger, Nicholas, Estate |
| Carthay Neighborhoods Historic District |
Data from United States Park Service and Wikidata
