New Hampshire - Criteria: A (event)
| Sulphite Railroad Bridge |
| Suncook Village Commercial-Civic Historic District |
| Swallow Boathouse |
| Swiftwater Covered Bridge |
| Temple Town Hall |
| Tenney, Samuel, House |
| Third Fitzwilliam Meetinghouse |
| Thompson Hall |
| Tilton Downtown Historic District |
| Tilton Island Park Bridge |
| Tip-Top House |
| Todd Block |
| Town Center Historic District |
| Town Hall |
| Townsend, Jabez, House |
| Trinity Church |
| Troy Village Historic District |
| True Farm |
| Tucker Mountain Schoolhouse |
| Union Chapel |
| Union Church |
| Union Hotel |
| Upham-Walker House |
| USS ALBACORE |
| Valley Cemetery |
| Varney School |
| Veterans' Memorial Hall |
| Victory Park Historic District |
| Wakefield House |
| Wakefield Town Hall and Opera House |
| Wales, Mary Anne, House |
| Wallace Farm |
| Walpole Academy |
| Waterloo Covered Bridge |
| Waterloo Historic District |
| Watson Academy |
| Waumbek Cottages Historic District |
| Webster Estate |
| Weeks, William Dennis, Memorial Library |
| Weldwood |
| Wentworth, Gov. John, House |
| Weston Observatory |
| West Swanzey Covered Bridge |
| White Farm |
| White Meetinghouse |
| Whiting, Oliver, Homestead |
| Whittier Bridge |
| Wiggin Memorial Library |
| Wilder-Holton House |
| Wildwood Cottage |
| Willard Homestead |
| Wilton Public and Gregg Free Library |
| Wilton Town Hall |
| Windermere |
| Wiswall Falls Mills Site |
| Woodbury Mill |
| Woodman Institute |
| Woodman Road Historic District |
| Wright's Bridge |
| Wyatt, Samuel, House |
| Wyman Tavern |
Data from United States Park Service and Wikidata
