California - Criteria: B (person)
| Navarro |
| Newland House |
| Nicholson, Grace, Building |
| Nixon, Richard, Birthplace |
| Norris, Frank, Cabin |
| Norris House |
| North Star House |
| Nuestra Senora Reina de la Paz |
| Ohm, John, House |
| Old San Antonio Hospital |
| Pacheco, Don Fernando, Adobe |
| Pacific Biological Laboratories |
| Pan American National Bank of East Los Angeles |
| Pantages, Alexander, Theater |
| Pardee House |
| Parker House |
| Pena Adobe |
| Petaluma Adobe |
| Phillips Mansion |
| Picchetti Brothers Winery |
| Pico, Pio, Casa |
| Pierotti, Attlio and Jane, House |
| Pinkham, Capt. George, House |
| Pitzer House |
| Pogue Hotel |
| Pond Farm Pottery Historic District |
| Pope Estate |
| Porter-Vallejo Mansion |
| Post, Joseph W., House |
| Price, John, House |
| RALPH J. SCOTT |
| Ralston, William C., House |
| Ramos, John, Sherry House-Depot Saloon |
| Rancho Las Palmas |
| Rancho San Lucas |
| Ravenswood |
| Reading Adobe Site |
| Renwick, Helen Goodwin, House |
| Renzel, Ernest & Emily, House |
| Rhoades Ranch |
| Rispin Mansion |
| Rodgers, Moses, House |
| Rodgers, Patrick, Farm |
| Rogers, Will, House |
| Romain, Frank, House |
| Roop's Fort |
| Rosecroft |
| Roybal, Edward, House |
| Russian Hill-Macondray Lane District |
| Russian Hill-Vallejo Street Crest District |
| Sacramento City Cemetery |
| Sanchez Adobe Park |
| San Diego State College |
| Sargent, Aaron A., House |
| Scott, Hiram D., House |
| Semorile Building |
| Sequoia Union High School |
| Sexton, Joseph and Lucy Foster, House |
| Shaw House |
| Shaw, Isaac E., Building |
| Shoup, Paul, House |
| Simi Adobe-Strathearn House |
| Simmons, William Adam, House |
| Sinclair, Upton, House |
| Sinton House |
| Slocum House |
| Soda Springs Cabin |
| Southwest Museum |
| Spotswood House |
| Spurgeon Block |
| Stanford-Lathrop House |
| Stanton, Phillip Ackley, House |
| Steinbeck, John, House |
| Steinbeck, John, House |
| Stevenson House |
| Stevens, Sherman, House |
| St. Francis by-the-Sea American Catholic Church |
| St. James Park Historic District |
| Stoner House |
| Stow House |
| Straight, Charles E., House |
| Stroschein, Carl, House |
| Strout, George A., House |
| Sun House |
| Sweed, Philip, House |
| Sweet, A. H., Residence and Adjacent Small House |
| Sweet House |
| TB-9 |
| Teacher Training School Building-San Diego State Normal School |
| Textile Center Building |
| The Forty Acres |
| "Thomas, Franklin Rosborough ""Frank"", House" |
| Thomas House |
| Thorn House |
| Torrey, Joseph and Carrie, House |
| Tribune-Republic Building |
| Twining Laboratories |
| USS POTOMAC (yacht) |
| Valencia Hall |
| Vallejo Estate |
Data from United States Park Service and Wikidata
