New York - Criteria: C (architecture/engineering)
| Substation 42 |
| Substation 7 |
| Suffolk County Almshouse Barn |
| Suffolk County Historical Society Building |
| Sugar Hill Historic District |
| Sullivan, Ed, Theater |
| Sulphur Springs Cemetery |
| Summerfield Street Row Historic District |
| Sunnyside |
| Sunnyside Gardens Historic District |
| Sunnyslope |
| Sunset Hill |
| Sunset Park Historic District |
| Supplee, Daniel, Cobblestone Farmhouse |
| Surrogate's Court |
| Sutherland, Daniel, House |
| Sutherland, David, House |
| Sutton-Chapman-Howland House |
| Suydam House |
| Swan, Edward H., House |
| Swan River Schoolhouse |
| Swart House and Tavern |
| Swarthout, William, Farm |
| Swart-Wilcox House |
| Sweet Briar |
| Sweet Hollow Presbyterian Church Parsonage |
| Sweetland Farmhouse |
| Sweet Memorial Building |
| Sweet, Samuel, Canal Store |
| Swift, Philetus, House |
| Swing Bridge |
| Swortz, William, House |
| Sylvan Beach Union Chapel |
| Sylvester Apartment Building |
| Sylvester Manor |
| Syracuse Bread Company Factory |
| Syracuse City Hall |
| Syracuse Lighting Company |
| Syracuse Savings Bank |
| Syracuse University-Comstock Tract Buildings |
| Tabernacle Baptist Church |
| Tabor-Wing House |
| Taconic State Parkway |
| Taft House |
| Talichito |
| Tall Maples Miniature Golf Course |
| Tall Pines |
| Tanner Block |
| Tannersville Main Street Historic District |
| Tappan Historic District |
| Tappan Zee Playhouse |
| Tarbell Building |
| Tarrytown Lighthouse |
| Taylor Boathouse |
| Taylor Center Methodist Episcopal Church and Taylor District #3 School |
| Taylor-Corwin House |
| Taylor, Emma Flower, Mansion |
| Taylor Flats |
| Taylor Signal Company-General Railway Signal Company |
| Taylor, William, House |
| Teal Park |
| Tears, John, Inn |
| Tefereth Israel Anshei Parksville Synagogue |
| Tefft-Steadman House |
| Telluride House |
| Temple Beth-El |
| Temple Beth El of Borough Park |
| Temple Beth Zion |
| Temple B'Nai Israel |
| Temple Emanu-El |
| Temple of Israel |
| Temple of Israel Synagogue |
| Temple Society of Concord |
| Ten Broeck, Benjamin, House |
| Ten Broeck, Jacob, Stone House |
| Ten Broeck Mansion |
| Tenement Building at 97 Orchard Street |
| Ten Eyck, Tobias, House and Cemeteries |
| Ten Mile River Baptist Church |
| Teoronto Block Historic District |
| Tepee, The |
| Terminal Building |
| Terneur-Hutton House |
| Terpenning-Johnson House and Cemetery |
| Terra Cotta Building |
| Terry-Ketcham Inn |
| Terry-Mulford House |
| Terwilliger House |
| Terwilliger-Smith Farm |
| Teviotdale |
| Thayer Farmstead |
| The Bowery Historic District |
| The Frick Collection and Frick Art Reference Library Building |
| The Great Atlantic and Pacific Tea Company Warehouse |
| The Hickories |
| The Karnak Flats |
| The Locusts |
| Thendara Historic District |
| The Rae Flats and The Raleigh |
| Theta Xi Fraternity Chapter House |
Data from United States Park Service and Wikidata
