Arizona - Area of significance: Architecture
| San Carlos Hotel |
| San Carlos Hotel |
| San Clemente Historic District |
| Sands Estate Historic District |
| Sands North Townhouses Historic District |
| San Marcos Hotel |
| San Pedro Chapel |
| San Rafael Estates |
| San Rafael Ranch Historic District |
| Santa Cruz Catholic Church |
| Santa Cruz County Courthouse |
| Santa Fe, Prescott and Phoenix Railroad Depot |
| 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 |
| Scottsdale North |
| Scudder, B. H., Rental House |
| Seligman Commercial Historic District |
| Selleh House |
| Sewall House |
| Sharp, M. J., House |
| Shekels House |
| Shonessy Building/Don Chun Wo Store |
| Shonessy House |
| Shride House |
| Shrine of Santa Rita in the Desert |
| Shumway School |
| Silver Peak Lookout Complex |
| Sirrine House |
| 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 |
| South Prescott Townsite |
| 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. 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 Bungalow |
| Stone Warehouse |
| Storms House |
| 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 |
| Sunshine Mile Historic District |
| Superintendent's Residence |
| Sycamore Ranger Station |
| Taliesin West |
| Talley, Hugh, House |
| Talley, William, House |
| Tempe Hardware Building |
| Temple Beth Israel |
| Temple Historic District |
| Templeton, Benjamin, House |
| The Olympus Condominiums |
| Three Mediterranean Cottages on Pajarito Street |
| Thunderbird Estates and The McDonald Addition Historic District |
| Titus, Frank, House |
| Todd, Charles S., House |
| Toltec Lodge |
| Tombstone City Hall |
| Tombstone Courthouse |
| Tonto National Monument Visitor Center |
| Town and Country Scottsdale Residential Historic District |
| Trans-Canyon Telephone Line, Grand Canyon National Park |
| Treu, John, House |
| Treu, Max, Territorial Meat Company |
| Truman-Randall House |
| Tubac Presidio |
Data from United States Park Service and Wikidata