New York - Criteria: A (event)
| Tuthill-Lapham House |
| Tuxedo Park |
| Twentieth Century Steam Riding Gallery No. 409 |
| Twentythird Regiment Armory |
| Twilight Park Historic District |
| Ulster and Delaware Railroad Depot and Mill Complex |
| Ulster and Delaware Railroad Station |
| Ulster Heights Synagogue |
| Unadilla Forks School |
| Unadilla Village Historic District |
| Unadilla Waterworks |
| Underhill, George, House |
| Union and State Streets Historic District |
| Union Avenue Historic District |
| Union Chapel |
| Union Chapel |
| Union Free School |
| Union Hall |
| Union Meeting House |
| Union Mill Complex |
| Union Savings Bank |
| Union Square |
| Union Station |
| Union Station |
| Union Station |
| Union Street Historic District |
| Union Street Historic District |
| Union Temple of Brooklyn |
| Union Theological Seminary |
| United Presbyterian Church of Davenport |
| United Stated Merchant Marine Academy |
| United States Lace Curtain Mills |
| United States Military Academy |
| United States Oval Historic District |
| United Traction Company Building |
| United Waste Manufacturing Company Building |
| United Workers Cooperatives |
| University Club of Albany, The |
| University Park Historic District |
| University Presbyterian Church |
| University Settlement House |
| Upenough |
| Uplands, The |
| Upper Middleburgh Cemetery |
| Upper-Mill Street Historic District |
| Upperville Meeting House |
| Upsilon Alpha Chapter House |
| URGER (canal tugboat) |
| U.S. Army Military Ocean Terminal |
| US Bullion Depository, West Point, New York |
| USCO Church, The |
| US Courthouse |
| U.S. Customhouse |
| U.S. Customhouse |
| U.S. Customshouse |
| U.S. Inspection Station-Mooers, New York |
| U.S. Inspection Station-Rouses Point (St. John's Highway), New York |
| U.S. Inspection Station-Trout River, New York |
| Usonia Historic District |
| U.S. Post Office |
| US Post Office-Akron |
| US Post Office-Albion |
| US Post Office-Amsterdam |
| US Post Office-Angola |
| US Post Office-Attica |
| US Post Office-Ballston Spa |
| US Post Office-Bath |
| US Post Office-Bay Shore |
| US Post Office-Beacon |
| US Post Office-Boonville |
| US Post Office-Bronxville |
| US Post Office-Canajoharie |
| US Post Office-Canal Street Station |
| US Post Office-Canandaigua |
| US Post Office-Canastota |
| US Post Office-Canton |
| US Post Office-Carthage |
| US Post Office-Catskill |
| US Post Office-Church Street Station |
| US Post Office-Clyde |
| US Post Office-Cooper Station |
| US Post Office-Cooperstown |
| US Post Office-Corning |
| US Post Office-Cortland |
| US Post Office-Dansville |
| US Post Office-Delhi |
| US Post Office-Delmar |
| US Post Office-Depew |
| US Post Office-Dobbs Ferry |
| US Post Office-Dolgeville |
| US Post Office-Dunkirk |
| US Post Office-East Rochester |
| US Post Office-Ellenville |
| US Post Office-Endicott |
| US Post Office-Far Rockaway |
| US Post Office-Flatbush Station |
| US Post Office-Flushing Main |
| US Post Office-Forest Hills Station |
| US Post Office, Former, and Federal Courthouse |
| US Post Office-Fort Plain |
Data from United States Park Service and Wikidata
