Arkansas - Area of significance: Architecture
| Stegall General Store |
| St. Elizabeth's Catholic Church |
| Stewart House |
| Stifft Station Historic District |
| Stipe Cotton Gin |
| Stitt House |
| St. Joe Missouri and North Arkansas Railroad Depot |
| St. John's Episcopal Church |
| St. John the Baptist Catholic Church |
| St. Joseph's Home |
| St. Luke's Catholic Church |
| St. Luke's Episcopal Church |
| St. Mark's Episcopal Church |
| St. Mary's Catholic Church |
| St. Mary's Catholic Church |
| St. Mary's Episcopal Church |
| Stockton Building |
| Stokes, Fremont, House |
| Stokes House |
| Stone County Courthouse |
| Stone House |
| Stone, William, House |
| Storm Cellar, William Howell House |
| Stowers, Dan, Office Building |
| St. Paul Lutheran School |
| St. Paul School Building |
| St. Paul's Parish Church |
| Straub, William Nicholas, House |
| Strauss House |
| Strauss, Sam and Shirley, House |
| St. Richard's Catholic Church |
| Stroud House |
| Stuckey’s (Plumerville) |
| Studebaker Showroom |
| Student Union Building-University of Arkansas, Fayetteville |
| Stuttgart Commercial Historic District |
| Sugarloaf Fire Tower Historic District |
| Sulphur Springs Old School Complex Historic District |
| Sulphur Springs Park Reserve |
| Sutherlin Cabin |
| Swift Building |
| Tall Peak Fire Tower |
| Tall Pines Motor Inn |
| Tankersley-Stewart House |
| Tanner, James W. and Billie, House |
| Tappan, James C., House |
| Tappan, Maj. James Alexander, House |
| Tate's Barn |
| Taylor Building |
| Taylor Field |
| Taylor Log House and Site |
| Taylor, Samuel P., Service Station |
| Taylor-Stokes House |
| Telephone Exchange Building |
| Temple House |
| Temple Meir Chayim |
| Ten Mile House |
| Terminal Hotel |
| Terminal Warehouse Building |
| Terry Block Building |
| Terry, William L., House |
| Texarkana, Arkansas, Municipal Building |
| Texarkana Union Station |
| Texarkana US Post Office and Courthouse |
| Thane House |
| Tharp House |
| The Worthen Building |
| Thomas, Greene, House |
| Thomas Homestead |
| Thomas House |
| Thompson, Ada, Memorial Home |
| Thompson, C.E., General Store and House |
| Thompson House |
| Thorncrown Chapel |
| Thornton House |
| Thrasher, John, Homestead |
| Three States Lumber Company Mill Powerhouse |
| Threlkeld House |
| Thurmond House |
| Thurston House |
| Tichnor Rice Dryer and Storage Building |
| Tillar, Frank, Memorial Methodist Episcopal Church, South |
| Tilley, John, House |
| Titus House |
| Tompkins, Chris, House |
| Towbin, Dr. Eugene, House |
| Tower Building |
| Trapnall Hall |
| Treat Commercial Building |
| Treece, Jasper E., Building |
| Tribble, Dr. Albert H., House |
| Trimble House |
| Trimble-McCrary House |
| Trinity Episcopal Cathedral |
| Trinity Episcopal Church |
| Trinity Episcopal Church |
| Trinity Lutheran Church |
| Triplett Company Building |
| Troy Lasater Service Station |
| Trulock-Cook House |
Data from United States Park Service and Wikidata
