Arizona - Criteria: C (architecture/engineering)
| Rialto Theatre |
| Ridgeway, David, House |
| Riley, Clara Smith, House |
| Rincon Heights Historic District) |
| Riordan Estate |
| Roberts House |
| Robinson, A. W., Building |
| Roman Roads |
| Ronstadt House |
| Ronstadt-Sims Adobe Warehouse |
| Ross, John M., House |
| Rosson, Dr. Roland Lee, House |
| Russell-Williamson House |
| Rustler Park Fire Guard Station |
| Sacaton Dam Bridge |
| Sacred Heart Catholic Church and Rectory |
| Sacred Heart Church |
| Sacred Heart Home for the Aged |
| Safford High School |
| Saint Anthony's Church and Rectory |
| Saint John's Methodist Episcopal Church |
| Saint Mary's Catholic Church |
| Salt River Bridge |
| Salt River Canyon Bridge |
| Sam Hughes Neighborhood Historic District |
| San Bernardino Ranch |
| San Carlos Hotel |
| San Carlos Hotel |
| San Clemente Historic District |
| Sanders Bridge |
| Sand Hollow Wash Bridge |
| San Marcos Hotel |
| San Pedro Chapel |
| San Rafael Ranch Historic District |
| Santa Cruz Bridge No. 1 |
| Santa Cruz Catholic Church |
| Santa Cruz County Courthouse |
| Santa Fe, Prescott and Phoenix Railroad Depot |
| San Tan Canal Bridge |
| San Xavier del Bac |
| Sapp, Sidney, House |
| Sargent, Mrs. M. P., House |
| Saxon, Harry, House |
| Schoolhouse at Truxton Canyon Training School |
| Schwertner House |
| Scott, Robert, House |
| Seligman Commercial Historic District |
| Selleh House |
| Sewall House |
| Sharp, M. J., House |
| Shekels House |
| Shonessy House |
| Shumway School |
| Silver Peak Lookout Complex |
| Sirrine House |
| Sixth Avenue Underpass |
| Skinner, E. W., House |
| Sloan House |
| Smith-Beck House |
| Smith, Jesse N., House |
| Smith, J. Homer, House |
| Smith, Professor George E. P., House |
| Smith, Walter Lee, House |
| Smurthwaite House |
| Snowflake Stake Academy Building |
| Soderman Building |
| Sosa-Carrillo-Fremont House |
| Soto, Pablo, House |
| South Beaver School |
| Southern Pacific Freight Depot |
| Southern Pacific Railroad Depot |
| Southern Pacific Railroad Passenger Coach Car-S.P. X7 |
| Spangler-Wilbur House |
| Spring, John, Neighborhood Historic District |
| Squaw Peak Inn |
| S.S. Blinky Jr. Building |
| Standifird, Aquilla, House |
| Stinson-Flake House |
| St. John's Episcopal Church |
| St. Joseph Bridge |
| St. Mary's Church |
| St. Mary's Church-Our Lady of Mount Carmel Catholic Church |
| St. Michael and All Angels Episcopal Church |
| Stoffela Store/Railroad Exchange |
| Stone Avenue Underpass |
| Stone Bungalow |
| Stone Warehouse |
| Story, F. Q., Neighborhood Historic District |
| Stoughton, Ralph H., Estate |
| St. Patrick's Roman Catholic Church |
| St. Paul's Episcopal Church |
| St. Paul's Episcopal Church |
| St. Philip's in the Hills Episcopal Church |
| Strauch House |
| Strawberry School |
| Stubbs, Courtney and Hilda, House |
| Suhwaro Hotel |
| Sullivan, G. H., Lodging House |
| Sunflower Ranger Staiton |
| Superintendent's Residence |
Data from United States Park Service and Wikidata
