Arizona - Criteria: C (architecture/engineering)
| Building at 218 Spring |
| Building at 400 East Third Street |
| Building at 826 North Main Street |
| Bullion Plaza School |
| Burmister/Timerhoff House |
| Burton Building |
| Cactus Press-Plaza Paint Building |
| Cady Hall |
| Caldwell, Erskine P., House |
| Cameron Suspension Bridge |
| Campbell, H. E., House |
| Camp Clover Ranger Station |
| Canelo Ranger Station |
| Canyon Diablo Bridge |
| Canyon Padre Bridge |
| Carminatti-Perham House |
| Carr, Raymond, House |
| Caruthers House |
| Casa Grande Dispatch |
| Casa Grande National Monument |
| Casa Grande Stone Church |
| Casa Juan Paisano |
| Catalina American Baptist Church |
| Catalina Foothills Estates Apartments |
| Catalina Foothills Estates Job No. 399 House |
| Catalina Vista Historic District |
| Cave Creek Service Station |
| Cedar Canyon Bridge |
| Celora Stoddard/Lon Harmon House |
| Central School |
| Chandler High School |
| Chapel of the Holy Cross |
| CHARLES H. SPENCER Hulk |
| Chevelon Creek Bridge |
| Childs-Irving Hydroelectric Facilities |
| Chiricahua National Monument Historic Designed Landscape |
| Church of the Nazarene |
| Cienega Bridge |
| Cima Park Fire Guard Station |
| Cisney, George E., House |
| Clarkdale Historic District |
| Clark House |
| Clark, J. M., House |
| Clark Memorial Clubhouse |
| Clear Creek Church |
| Clifton Townsite Historic District |
| C & M Garage |
| Coconino County Hospital Complex |
| Coe, H. M., House |
| Colonia Solana Residential Historic District |
| Colton, Albert and Freeman, H. H., House |
| Columbine Work Station |
| Concrete Block House |
| Congdon, Stephen and Persis Hart Browne, House |
| Converse, Ralph, House |
| Coolidge Dam |
| Cooper Ridge Lookout Tree |
| Copper Bell Bed and Breakfast |
| Copper Creek Guard Station |
| Corcoran, John P. and Helena S., House |
| Cordova Avenue Bridge |
| Cordova House |
| Corduroy Creek Bridge |
| Coronado Hotel |
| Corral Lake Lookout Tree |
| Courthouse Plaza Historic District |
| Cox, William, Building |
| Coyote Range |
| Craig, George C., House |
| Cranz, Frank F., House |
| Cross, T. D., House |
| Crowley House |
| Crown King Ranger Station |
| Cruz Trading Post |
| Curley School |
| Curtis Cottage |
| Davis, William Charles, House |
| Day House |
| Day, Judge William T., House |
| Dead Indian Canyon Bridge |
| Deep Well Ranch |
| Deer Springs Lookout Complex |
| Demountable Hangar |
| DeMund, Lester D., House |
| Dennis, Foster S., House |
| Desert View Watchtower Historic District |
| Detwiler House |
| Devil's Canyon Bridge |
| Diamond Point Lookout Cabin |
| Diller, Adam, House |
| Dodson-Esquivel House |
| Don Martin Apartment House |
| Doughterty, J. B., and C. W. Peterson House |
| Douglas Historic District |
| Douglas Residential Historic District |
| Douglas, Walter, House |
| Dowdy, George O., Rental Cottage |
| Drake House |
| Dressing Apartments |
| Drexel House |
Data from United States Park Service and Wikidata
