Kentucky - Criteria: C (architecture/engineering)
| St. Joseph Roman Catholic Church |
| St. Lukes Church |
| St. Mary's College Historic District |
| St. Mary's Episcopal Church |
| Stockton-Ray House |
| Stone Barn on Brushy Creek |
| Stone, George W., House |
| Stone House of Indian Creek |
| Stone House on Buffalo Creek |
| Stone House on Kentucky River |
| Stone House on Tanner's Creek |
| Stone House on West Hickman |
| Stone, John, House |
| Stoner Creek Rural Historic District |
| Stoney Castle |
| Stout, Ben, House |
| St. Patrick's Roman Catholic Church, Rectory, and School |
| St. Paul's Episcopal Church |
| St. Paul's Episcopal Church |
| St. Paul's German Evangelical Church and Parish House |
| St. Peters AME Church |
| St. Peter's German Evangelical Church |
| St. Philips Episcopal Church |
| Stroube House |
| St. Theresa Roman Catholic Church |
| St. Therese Roman Catholic Church, School, and Rectory |
| St. Thomas Episcopal Church |
| St. Thomas Roman Catholic Church and Howard-Flaget House |
| Stuart Building |
| Stuart, John, House |
| Stucky House |
| St. Vincent DePaul Church, Rectory, School, St. Ursula Home and Convent |
| St. Vincent de Paul School |
| Sugar Grove |
| Sunnyside |
| Sunnyside Farm House |
| Sutfield House |
| Sutfield-Thompson House |
| Sweeney, James J., House |
| Swindler House |
| Switzer Covered Bridge |
| Tanner, John, House |
| Tates Creek Baptist Church |
| Taylor, E. W., House |
| Taylor House |
| Taylor, J. B., and Son Feed Store |
| Taylor, Phillip R., House |
| Taylor's Daughters Historic District |
| Teater, William, House |
| Tebbs, Stanley F., House |
| Temple Adath Israel |
| Terrill, George W., House |
| Tevis Cottage |
| Theater Building |
| Thierman Apartments |
| Third National Bank |
| Third Street Motor Car Company Building |
| Thomas House |
| Thomas, Jack, House |
| Thomas, R. H., House |
| Thomas, Robert, House |
| Thomas, William J., House |
| Thompson House |
| Thompson, James, House |
| Thornburgh House |
| Tichenor, William, House |
| Tiemeyer House |
| Tiller, F. M., House |
| Tingley, George H., Elementary School |
| Tobacco Realty Company |
| Todd County Courthouse |
| Tomlin, John G., House |
| Trabue, Daniel, House |
| Trade Mart Building |
| Traveler's Rest |
| Trigg, James, House |
| Trimble County Jail |
| Trimble House |
| Trinity Episcopal Church |
| Trinity Episcopal Church |
| Trinity Episcopal Church |
| Trout House |
| Trutschell House |
| Tucker, Hazael, House |
| Tucker, John, House |
| Tuliphurst |
| Turley, Benjamin F., House |
| Turner, Judge Jim, House |
| Turpin House |
| Twin Gates Carriage House |
| Tyler Hotel |
| Tyler-Muldoon House |
| Tyler Settlement Rural Historic District |
| Uebel House |
| Underwood-Jones House |
| Undulata |
| Union County Courthouse |
| Union Station |
| Union Station |
| United States Post Office and Court House |
Data from United States Park Service and Wikidata
