Rhode Island - Significance region: Local
| South Main Street Historic District |
| South Providence Branch-Providence Public Library |
| South Street Historic District |
| Spencer-Shippe-Lillbridge House |
| Spencer, William B., House |
| Spink Farm |
| Stadium Building |
| St. Andrews Episcopal Chapel |
| St. Charles Borromeo Church Complex |
| Stedman & Fuller Manufacturing Company Complex |
| St. George's School-Church of St. George, Little Chapel, and Memorial Schoolhouse |
| Stimson Avenue Historic District |
| St. John the Baptist Church |
| 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 |
| Summit Historic District |
| Sweet, Ira B., House |
| Taft, Moses, House |
| Temple Beth-El |
| Tillinghast Mill Site |
| Todd Farm |
| Tootell House |
| Tower, Lewis, House |
| Trinity Square Repertory Theatre |
| Union Station |
| Union Trust Company Building |
| United States Post Office Annex |
| U.S. Post Office |
| Usquepaug Road Historic District |
| US Weather Bureau Station |
| Valley Falls Mill |
| Valley Queen Mill |
| Van Rensselaer, Alexander, House |
| Wakefield Historic District |
| Wanskuck Branch-Providence Public Library |
| Warwick Civic Center Historic District |
| Washington County Court House |
| Washington Park Sewage Pumping Station |
| Waterman, John R., House |
| Waterman, William, House |
| Waterman-Winsor Farm |
| Weaver, Clement-Daniel Howland House |
| Wesleyan Avenue Historic District |
| Westcote |
| Westcott, Nathan, House |
| Westerly Downtown Historic District |
| West Greenwich Baptist Church and Cemetery |
| Westminster Street Historic District |
| West Winds |
| Weybosset Mills Complex |
| Whalley, William, Homestead |
| Whipple-Angell-Bennett House |
| Whipple-Cullen House and Barn |
| Whipple-Jenckes House |
| Whitcomb Farm |
| White Horse Tavern |
| Whitmarsh, Col. Micah, House |
| Wickes, Oliver A., House |
| Wilbur, Frank, House |
| Willow Dell |
| Wilson-Winslow House |
| Winsor, Stephen, House |
| Witherbee School |
| Witherby, Constance, Park |
| Wood, Arad, House |
| Woonsocket City Hall |
| Woonsocket Civil War Monument |
| Woonsocket Rubber Company Mill |
| YWCA Site |
Data from United States Park Service and Wikidata
