California - Area of significance: Commerce
| Adin Supply Company |
| Administration Building, Atascadero Colony |
| Ah Louis Store |
| Ainsworth, Lewis, House |
| Alcatraz |
| Alf's Blacksmith Shop |
| ALMA (Scow Schooner) |
| Anacapa Island Archeological District |
| Anacapa Island Light Station |
| APOLLO (Storeship) |
| Arena Cove Historic District |
| Armour & Co. Building |
| Atascadero Printery |
| Audiffred Building |
| Bakersfield California Building |
| Balboa Inn |
| BALCLUTHA |
| Bank of Balboa-Bank of America |
| Bank of Eureka Building |
| Bank of Italy |
| Bank of Italy |
| Bank of Italy |
| Bank of Italy Building |
| Bank of Loleta |
| Bank of Los Banos Building |
| Bank of Santa Cruz County |
| Bank of Tracy |
| Bear Harbor Landing Historical and Archaeological District |
| Bekins Storage Co. Roof Sign |
| Belt Railroad Engine House and Sandhouse |
| Berwick Manor and Orchard |
| Berylwood |
| Bird and Dinkelspiel Store |
| Blue Anchor Building |
| Bockius, Godfrey M., House |
| Bodega Bay |
| Bowerman Barn |
| Bradford House |
| Brannan, Sam, Cottage |
| Brix, H. H., Mansion |
| Broadway Theater and Commercial District |
| Brockman Building and New York Cloak and Suit House (annex) |
| BROTHER JONATHAN (Shipwreck Site) |
| Brown, John Stanford, House |
| Buena Vista Vineyards-Buena Vista Vinicultural Society |
| Builders Exchange Building |
| Bullock's Wilshire Building |
| Buon Gusto Sausage Factory |
| Cache Creek Archeological District |
| Calaveras County Bank |
| Camp Curry Historic District |
| Canfield-Wright House |
| Capitol Tower |
| Carriger, Nicholas, Estate |
| Casa de Tableta |
| C.A. THAYER |
| Central Embarcadero Piers Historic District |
| Centrella Hotel |
| Chamber of Commerce Building |
| Chichizola Family Store Complex |
| China Camp |
| Chinatown |
| Citizens Publishing Company Building |
| City Hotel |
| City Transfer and Storage Company Warehouse |
| Civic Center Financial District |
| Clark, William S., House |
| Clay Building |
| Cloverdale Railroad Station |
| Cnopius House |
| Colorado Street Bridge |
| Commercial and Savings Bank |
| Commercial Exchange Building |
| Commercial Row-Brickelltown Historic District |
| Cone and Kimball Building |
| Cope Row Houses |
| Corder Building |
| Cottonwood Historic District |
| Coulterville Main Street Historic District |
| Cucamonga Service Station |
| De Anza Hotel |
| Death Valley Junction Historic District |
| DELTA KING |
| Diamond Apartments |
| Dollar, Robert, Estate |
| Downtown Hollister Historic District |
| Downtown Oakland Historic District |
| Downtown Santa Ana Historic Districts (North, Government/Institutional and South, Retail) |
| Downtown Woodland Historic District |
| Drucker, Peter, House |
| Dunsmuir Historic Commercial District |
| Easley, Oscar, Block |
| Edgewood Store |
| Edwards, Frank G., House |
| Eight Mile House |
| Einstein House |
| Elephant Packing House |
| El Garces |
| Elks Building |
| El Molino Viejo |
Data from United States Park Service and Wikidata