Louisiana - Significance region: Local
| Star Hill Post Office and Store |
| Starvation Point |
| St. Augustine Catholic Church and Cemetery |
| St. Basil's Academy |
| St. Bernard Market |
| St. Cecilia School |
| St. Claude General Hospital |
| St. David's Episcopal Church |
| Steere, A. C., Elementary School |
| Stein, Daniel, House |
| St. Elizabeth Catholic Church |
| St. Emma |
| Sterling Grove Historic District |
| Stevenson House |
| St. Francis Chapel |
| St. Francisville Historic District |
| St. Francis Xavier Cathedral |
| St. George Plantation House |
| St. James Episcopal Church |
| St. John Baptist Church |
| St. John Baptist Church |
| St. John's Cathedral |
| St. John's Episcopal Church and Cemetery |
| St. Joseph Cathedral |
| St. Joseph Church-Convent of the Most Holy Sacrament Complex |
| St. Joseph Plantation House |
| St. Julien House |
| St. Landry Catholic Church |
| St. Margaret Catholic Church |
| St. Mark's Baptist Church and Ashland Cemetery |
| St. Mark's Episcopal Church |
| St. Martinville Elementary School |
| St. Mary Congregational Church |
| St. Mary Magdalen Church, Rectory, and Cemetery |
| St. Mary's Assumption Church |
| St. Mary's Episcopal Church |
| St. Mary's Episcopal Church |
| St. Matthew High School |
| St. Maurice Methodist Church |
| St. Michael's Church Historic District |
| Stoker House |
| Stone Square Lodge No. 8 |
| St. Patrick's Catholic Church |
| St. Paul Baptist Church-Morehead School |
| St. Paul Lutheran Church |
| St. Peter A.M.E. Church |
| St. Philip's Episcopal Church |
| St. Philomene Catholic Church and Rectory |
| Straight University Boarding House and Dining Hall |
| Strand Theatre |
| Strand Theatre |
| Stribling House |
| St. Scholastica Priory and Cemetery |
| St. Theresa Catholic Church and School |
| St. Thomas the Apostle Catholic Church and Cemetery |
| St. Vincent De Paul Roman Catholic Church |
| Sullivan House |
| Sunnybrook |
| Sunset High School |
| Supple's, J., Sons Mercantile Company, Ltd. |
| Swearingen House |
| Sylvan Retreat |
| Sylvest House |
| Synope Plantation House |
| Tacony Plantation House |
| Tallulah Book Club Building |
| Tallulah Coca-Cola Bottling Plant |
| Tallulah High School |
| Tallulah Men's Club Building |
| Tallulah Post Office |
| Tally-Ho Plantation House |
| Tally's Bank |
| Tate House |
| Taylor House |
| Taylor, John R., Drugstore |
| Taylor Wholesale Grocers and Cotton Factors Warehouse-Lee Hardware Building |
| Teddy Avenue Residential Historic District |
| Tensas Parish Courthouse |
| Terral, Dr.,Clinic |
| Tewell House |
| Texaco Service Station |
| Texas and Pacific Railroad Depot |
| Texas Avenue Buildings |
| Thomas House |
| Thrasher House |
| Tioga Commissary |
| Todd, Dr. John W., House |
| Toliver Dining Hall-Louisiana Tech University |
| Toups, Zephirin, Sr., House |
| Touro-Shakspeare Home |
| Towles-Musso House |
| Townsend House |
| Toy House |
| Trees City Office and Bank Building |
| Treme Market |
| Trinity |
| Trinity Episcopal Church |
| Trio Plantation House |
| Trosper House |
| Trout-Good Pine School |
Data from United States Park Service and Wikidata
