Texas - Criteria: C (architecture/engineering)
| Southern Pacific Railroad Depot |
| Southern Pacific Railroad Freight Depot |
| Southern Pacific Railroad Passenger Depot |
| Southern Pacific Railroad Passenger Station |
| Southgate-Lewis House |
| South Main Street Historic District |
| South Overton Residential Historic District |
| South Side Historic District |
| South Side Masonic Lodge No. 1114 |
| South Side Residential Historic District |
| South Texas National Bank |
| Southwestern Telegraph and Telephone Building |
| Southwestern University Administration Building and Mood Hall |
| Space Environment Simulation Laboratory |
| Spake, Jacob and Eliza, House |
| Spanish Governor's Palace |
| Speaker, J. H., House |
| Spooner, Thomas Harrison and Mollie, House |
| SS SELMA (steamship) |
| Staacke Brothers Building |
| Stafford Bank and Opera House |
| Stagecoach Inn |
| Stage Coach Inn |
| Stamford City Hall |
| Stanard-Tilton Flour Mill |
| Standley House |
| Starcke, Richard, House |
| Starcke, Richard, House |
| Star Drug Store |
| Star Engraving Company Building |
| Stark, W. H., House |
| Starr House |
| State Epileptic Colony Historic District |
| State Highway 120 Bridge at the Brazos River |
| State Highway 16, Brazos River Bridge Segment |
| State Highway 16 Bridge at the Brazos River |
| State Highway 19 Bridge at Trinity River |
| State Highway 203 (Old TX 52) Bridge at Salt Fork of the Red River |
| State Highway 23 Bridge at the Clear Fork of the Brazos River |
| State Highway 27 Bridge at Johnson Fork |
| State Highway 27 Bridge at the Guadalupe River |
| State Highway 27 Bridge at the South Llano River |
| State Highway 29 Bridge at the Colorado River |
| State Highway 34 Bridge at the Trinity River |
| State Highway 35 Bridge at the West Fork of the San Jacinto River |
| State Highway 3-A Bridge at Cibolo Creek |
| State Highway 3-A Bridge at Plum Creek |
| State Highway 3 Bridge at the Colorado River |
| State Highway 3 Bridge at the Nueces River |
| State Highway 3 Bridge at the Trinity River |
| State Highway 53 Bridge at the Leon River |
| State Highway 5 Bridge at High Creek |
| State Highway 71 Bridge at the Colorado River |
| State Highway 78 Bridge at the Red River |
| State Highway 79 Bridge at the Red River |
| State Highway 89 Bridge at the Brazos River |
| State Highway 9 Bridge at the Llano River |
| State Highway Bridge 5 at Big Pine Creek |
| State Lunatic Asylum |
| State National Bank |
| State National Bank Building |
| Stations of the Cross and Grotto at the Shrine of St. Anthony de Padua |
| Stavely-Kunz-Johnson House |
| St. David's Episcopal Church |
| St. Edward's University Main Building and Holy Cross Dormitory |
| Steele House |
| Steffens-Drewa House Complex |
| Stephens County Courthouse |
| Stephenville Downtown Historic District |
| Sterling-Berry House |
| Sterling City Gulf, Colorado & Santa Fe Railway Passenger Depot |
| Sterling, Ross,S., House |
| Sterne-Hoya Historic District |
| Stevens Building |
| Stevens, Elisha, House |
| Stevenson, Joseph R. and Mary M., House |
| Stewart, Dr. James M. and Dove, House |
| Stilley-Young House |
| Stillman, Charles, House |
| Stinson, John R., House |
| Stith, William and Evla, House |
| St. James Episcopal Church |
| St. John's Episcopal Church |
| St. John's Evangelical Lutheran Church |
| St. John's Seminary |
| St. John the Baptist Catholic Church |
| St. Joseph's Church |
| St. Louis and San Francisco Railway Depot (Frisco Depot) |
| St. Louis Hall at St. Mary's University |
| St. Louis Southwestern Railway (Cotton Belt) Passenger Depot |
| St. Mark's Episcopal Church |
| St. Mary of the Assumption Church |
| St. Mary's Cathedral |
| St. Mary's Cathedral |
| St. Mary's Catholic Church |
| St. Mary's Catholic Church |
| St. Mary's Catholic Church |
| St. Mary's Church of the Assumption |
| St. Michael's Catholic Church |
| Stoddard, Jessie W., House |
Data from United States Park Service and Wikidata
