Rhode Island - Area of significance: Architecture
| Shoreby Hill Historic District |
| Six Principle Baptist Church |
| Sixth District Courthouse |
| Slater Park |
| Slatersville Historic District |
| Slocum, Joseph, House |
| Smith-Appleby House |
| Smith-Ballou House |
| Smithfield Friends Meeting House, Parsonage & Cemetery |
| Smithfield Road Historic District |
| Smith-Gardiner-Norman Farm Historic District |
| Smith Hill Branch-Providence Public Library |
| Smith Hill Historic District |
| Smith, Joseph, House |
| Smith's Castle |
| Smith Street Primary School |
| Smithville-North Scituate |
| Smithville Seminary |
| Sons of Jacob Synagogue |
| South Central Falls Historic District |
| Southern Thames Historic District |
| South Main Street Historic District |
| South Main Street Historic District |
| South Providence Branch-Providence Public Library |
| South Street Historic District |
| South Street Station |
| Spaulding, Joseph, House |
| Spencer-Shippe-Lillbridge House |
| Spencer, William B., House |
| Spink Farm |
| Sprague, David, House |
| Sprague, Gov. William, Mansion |
| Squantum Association |
| Stadium Building |
| Standard Paper Box Corporation |
| St. Andrews Episcopal Chapel |
| St. Ann's Church Complex |
| Stanton, Joseph, House |
| State Arsenal |
| St. Charles Borromeo Church Complex |
| St. Columba’s, the Berkeley Memorial Chapel |
| St. George's School-Church of St. George, Little Chapel, and Memorial Schoolhouse |
| Stiles, Ezra, House |
| Stimson Avenue Historic District |
| St. John the Baptist Church |
| St. Joseph's Church Complex |
| St. Joseph's Roman Catholic Church |
| St. Mary's Church and Cemetery |
| St. Mary's Church Complex |
| St. Mary's Church of the Immaculate Conception Complex |
| St. Mary's Episcopal Church |
| St. Mary’s Episcopal Church |
| St. Matthew's Church |
| St. Matthew's Episcopal Church |
| St. Michael's Roman Catholic Church, Convent, Rectory, and School |
| Stone House Inn |
| Stonybrook Estate Historic District |
| St. Paul's Church |
| St. Paul's Church |
| St. Stephen's Church |
| Summit Historic District |
| Sweet, Ira B., House |
| Taft, Moses, House |
| Temple Beth-El |
| Tillinghast, Charles, House |
| Tillinghast, John, House |
| Tillinghast Road Historic District |
| Tiverton Four Corners Historic District |
| Todd Farm |
| Tootell House |
| Touro Synagogue National Historic Site |
| Tower-Flagg Barn Complex |
| Tower, Lewis, House |
| Towers Historic District |
| Towers, The |
| Trinity Church |
| Trinity Church |
| Trinity Square Historic District |
| Trinity Square Repertory Theatre |
| Union Church |
| Union Trust Company Building |
| Union Village Historic District |
| United Congregational Church |
| United States Post Office Annex |
| United States Rubber Company Mill Complex |
| University Hall, Brown University |
| University of Rhode Island Historic District |
| Upper Rockville Mill |
| U.S. Customshouse |
| U.S. Post Office |
| US Post Office |
| Usquepaug Road Historic District |
| US Weather Bureau Station |
| Valley Falls Mill |
| Valley Falls Mill, Office and Bath House |
| Valley Queen Mill |
| Van Rensselaer, Alexander, House |
| Varnum, Gen. James Mitchell, House |
| Vernon House |
| Veterans Memorial Auditorium-Masonic Temple |
Data from United States Park Service and Wikidata
