New Hampshire - Significance region: National
| Rockingham Hotel |
| Rowell's Covered Bridge |
| Saint-Gaudens National Historic Site |
| Saint-Gaudens National Historic Site Historic District |
| Salmon Falls Mill Historic District |
| Sandown Old Meetinghouse |
| Signer's House and Matthew Thornton Cemetery |
| Spur House |
| Stark, Gen. John, House |
| Stone-Darracott House |
| Stone Farm |
| Stonehenge |
| Strawbery Banke Historic District |
| Strong, Capt. Richard, House |
| Strongman, Henry, House |
| Strongman, William, House |
| Strong, Richard, Cottage |
| Sullivan, Gen. John, House |
| The Epic of American Civilization Murals, Baker Library, Dartmouth College |
| Thornton, Matthew, House |
| Tip-Top House |
| Townsend Farm |
| USS ALBACORE |
| Wales, Mary Anne, House |
| Webster, Daniel, Family Home |
| Weeks House |
| Weeks State Park |
| Weldwood |
| Wentworth-Coolidge Mansion |
| Wentworth-Gardner and Tobias Lear Houses |
| Wentworth-Gardner House |
| Windmill Hill |
| Wood House |
Data from United States Park Service and Wikidata
