All - Constructed - 1920–1929
| Sterick Building |
| Sterling Mountain Fire Observation Tower and Observer's Cabin |
| Steuben Club, The |
| Stevens, Breese, Municipal Athletic Field |
| Steven's, Dr., House |
| St. Francis Xavier Catholic Church and Rectory |
| Stieff Silver Company Factory |
| St. Ignatius Loyola Church |
| Stillwell, Erle, House |
| Stitzel, Arthur P., House |
| St. James Colored Methodist Episcopal Church |
| St. John's Cathedral |
| St. John's Lutheran Church |
| St. John's Missionary Baptist Church |
| St. John the Evangelist Roman Catholic Church and School Building |
| St. Joseph Convent and Academy Complex |
| St. Joseph School |
| St. Joseph's School |
| St. Louis Theatre |
| St. Ludger Catholic Church |
| St. Luke's Episcopal Church |
| St. Luke's Episcopal Church |
| St. Luke's Evangelical Lutheran Church |
| St. Mary's By the River |
| St. Mary’s Roman Catholic Church |
| St. Matthew's Church |
| Stone, Ben and Margaret, Boathouse |
| Stonecroft |
| Stone Eagles |
| Stone Warehouse |
| Stony Island Trust and Savings Bank Building |
| Stover, B. A. and Ruth, House |
| St. Patrick's Roman Catholic Church |
| St. Peter's AME Zion Church |
| St. Philip's Episcopal Church |
| Stranahan, Prof. Edgar H. and Irene D., House |
| Strand Theatre |
| Strang School District No. 36 |
| St. Theresa of Avila Roman Catholic Parish Complex |
| Stuart Building |
| Stuart Motor Company |
| Suburban Station Building |
| Sullivan, Ed, Theater |
| Sulphide-Frisco Cabin |
| Summers, Frank Rickert, House |
| Summit Lake Ranger Station |
| Sunnycroft |
| Sunny Side Inn |
| Sunset High School |
| Sunset Park Patrol Cabin |
| Sunset Point |
| Sunset Towers |
| Sun Terrace |
| Superintendent's Residence |
| Supreme Court of South Carolina Building |
| Susanville Railroad Depot |
| Sutherland Bridge |
| Sutliff, Solon and Mathilda, House |
| Swainsboro Light and Water Plant |
| S-W Supply Company |
| Taconic State Parkway |
| Taft Museum |
| Talichito |
| Tannler-Armstrong House |
| Tarryall School |
| Taylor Memorial Chapel |
| Taylor, Ray E., House |
| Taylor, Zachary, National Cemetery |
| Tazewell Depot |
| Teaticket School |
| Temple Beth-El |
| Temple Beth Israel |
| Temple of Free Masonry |
| Temple of Israel Synagogue |
| Temple Theater |
| Ten Curves Road-Manistique River Bridge |
| Ten Eyck, Albert and Minna, Round Barn |
| Tennessee, Alabama & Georgia Railway Steam Locomotive #101 |
| Tennille Woman's Clubhouse |
| Terrace Court |
| Terry Park Ballfield |
| The Bellevue-Staten |
| The Dalles Civic Auditorium |
| The Elverson Building |
| The Oaks |
| Theodore Roosevelt Birthplace National Historic Site |
| Theodore Roosevelt High School |
| Theresa Building |
| The Sentinel |
| Third Sarpy County Courthouse |
| Third Street Railroad Trestle |
| Thompson Court Apartments |
| Thompson, William N., House |
| Thornapple River Drive Bridge |
| Tiger Hotel |
| Timberline Cabin |
| Timpanogos Cave Historic District |
| Tindley Temple United Methodist Church |
| Tinker Field |
| Toklat Ranger Station-Pearson Cabin No. 4 |
Data from United States Park Service and Wikidata
