California - Criteria: A (event)
| China Camp |
| Choy, Sam, Brick Store |
| Christian Church of Gilroy |
| Christmas Tree Lane |
| Chung Wah Cemetery |
| Church of the Good Shepherd-Episcopal |
| Church of the Nativity |
| Citizens Publishing Company Building |
| City Hall-City of Burbank |
| City Hotel |
| City of Paris Building |
| City of San Diego Police Headquarters, Jails and Courts |
| Civic Center Financial District |
| Clark, Mary Andrews, Memorial Home |
| Clay Building |
| Club Casa Del Mar |
| Colfax Freight Depot |
| Colfax Passenger Depot |
| College Women's Club |
| Coloma |
| Colonial House |
| Colony House |
| Colorado Street Bridge |
| Columbia Historic District |
| Colusa Carnegie Library |
| Commercial and Savings Bank |
| Commercial Row-Brickelltown Historic District |
| Community Church of Gonzales |
| Community Clubhouse |
| Community Settlement House |
| Comstock House |
| Confidence Hall |
| Congregation Talmud Torah of Los Angeles |
| Contra Costa County Hall of Records |
| Coolot Company Building |
| Cooper Cabin |
| Cope Row Houses |
| Copperopolis Armory |
| Copperopolis Congregational Church |
| Corder Building |
| Corona High School |
| Coso Hot Springs |
| Cottonwood Historic District |
| Coulterville Main Street Historic District |
| Cow Camp |
| Cowell Lime Works Historic District |
| Cowell Memorial Hospital |
| Crabbe, Earl, Gymnasium |
| Crane Flat Fire Lookout |
| Crank House |
| Cresent City Lighthouse |
| Crocker, E. B., Art Gallery |
| Croll Building |
| Crowder Canyon Archeological District |
| Crystal Cove Historic District |
| Cucamonga Service Station |
| Cunningham-Hembree Estate |
| Cypress Street Schoolhouse |
| Dallam-Merritt House |
| Dana Adobe |
| Dana, Richard Henry, Branch |
| Danville Southern Pacific Railroad Depot |
| Davenport Jail |
| Davis Mill |
| Davis Subway |
| De Anza Hotel |
| Death Valley Junction Historic District |
| Death Valley Scotty Historic District |
| Deetjen's Big Sur Inn |
| Degnan's Restaurant |
| DELTA KING |
| De Neve, Felipe, Branch |
| De-No-To Cultural District |
| DePue, Grace Blair, House and Indian Museum |
| Desert Queen Mine |
| Devils Postpile National Monument Ranger Cabin |
| Diamond Apartments |
| Dixie Schoolhouse |
| Dixon Carnegie Library |
| Doe Memorial Library |
| Donner Camp |
| Doolan, Richard P., Residence and Storefronts |
| Douglas Flat School |
| Downtown Hollister Historic District |
| Downtown Oakland Historic District |
| Downtown Santa Ana Historic Districts (North, Government/Institutional and South, Retail) |
| Downtown Woodland Historic District |
| Drakesbad Guest Ranch |
| Drawing Building |
| Dresbach-Hunt-Boyer House |
| Drum Barracks |
| Drydock 4 Hunters Point Naval Shipyard |
| Dudley House |
| Dunlap's Dining Room |
| Durant Hall |
| Durgan Bridge |
| Eagle Borax Works |
| Eagle Rock Branch Library |
| Eagles Hall |
| Eames House |
Data from United States Park Service and Wikidata
