All - Architectural style - Shingle style architecture
| Soldiers' Memorial Library |
| South Swansea Union Church |
| Sprague, Thomas S., House |
| Squan Beach Life-Saving Station #9 |
| Stevens, John Calvin, House |
| St. Ignatius Church |
| St. Mark's Baptist Church |
| St. Marks Presbyterian Church |
| Stonecrest |
| St. Oswald's Protestant Episcopal Church |
| Stoughton, Mary Fisk, House |
| St. Paul's Episcopal Church |
| St. Stephen's Methodist Church |
| Sturgis, William, House |
| St. William's Catholic Church |
| Sunnyside |
| Swalwell Cottage |
| Swampscott Fish House |
| Swan, Henry, House |
| Sweeney, Judge John C., House |
| Tarrywile |
| Taylor-Dallin House |
| Taylors Falls Public Library |
| Templeton, I. Edward, House |
| The Hickories |
| Third Railroad Station |
| Third Reformed Church |
| Thomason, John W., House |
| Thompson, James, House |
| Tianderah |
| Tower, George F., Jr. and Carrie, House |
| Tranquility Farm |
| Trinity Church |
| Trinity Episcopal Church |
| Trinity Episcopal Church |
| Trulock-Cook House |
| Tulipwood |
| Twin Gates Carriage House |
| Union Baptist Church |
| Union Church of Northeast Harbor |
| Union Church of Vinalhaven |
| Unity Chapel |
| Uplands, The |
| US Fisheries Station, Duluth |
| U.S. Life Saving Station Station No. 14 |
| Vilas, Joseph, Jr., House |
| Wales, Mary Anne, House |
| Warren, Frederick Fiske and Gretchen Osgood, House |
| Washington Canoe Club |
| Watson, David and Julia, House |
| Watson, Sally, House |
| Wawbeek-Horace A.J. Upham House |
| Waybur, Julian, House |
| Webster Estate |
| Wedge, Dr. Albert C., House |
| West End Wheelmen's Club |
| West Point Inn |
| Weyerhaeuser, Charles A., and Musser, Richard Drew, Houses |
| Wharf House |
| Wharton, E. A. and Ura, House |
| Wheeling Country Club |
| White, Charles E., House |
| White Cross-Huntley Hall |
| Whittemore House |
| Wianno Club |
| Wightman, Dr. W. C., House |
| Wildwood |
| Wildwood Hall |
| Williams-Gierth House |
| Wilson, David, House |
| Wilson, Victor E., House |
| Witherbee Memorial Hall |
| Wollaston Unitarian Church |
| Woodcrest |
| Wood House |
| Wood, Joseph, House |
| Wooton Presbyterian Center |
| Wright House |
| Wyatt, Arthur D. and Emma J., House |
| Ziemer, Arthur C., House |
Data from United States Park Service and Wikidata
