New Hampshire - Significance region: Local
| Owls Head |
| Page Belting Company Mills |
| Parker's Store |
| Park Hill Meetinghouse |
| Peabody, William, House |
| Peck-Porter House |
| Pelham Library and Memorial Building |
| Pembroke Mill |
| Peterborough Town House |
| Peterborough Unitarian Church |
| Philbrook Farm Inn |
| Pickering House |
| Pillsbury Memorial Hall |
| Pineground Bridge |
| Pinkham, Daniel, House |
| Plainfield Town Hall |
| Plains Cemetery |
| Plaistow Carhouse |
| Pleasant View Home |
| Plummer Homestead |
| Plymouth Historic District |
| Point Comfort |
| Pointfield |
| Porter, General, House |
| Portsmouth Cottage Hospital |
| Potter Place Railroad Station |
| Pratt Family Camps |
| Prentiss Bridge |
| Prescott, Benjamin Franklin, House |
| Protectworth Tavern |
| Public Market |
| Queensbury Mill |
| Raubold House |
| Raymond Boston and Maine Railroad Depot |
| Reade, Michael, House |
| Reed, Isaac, House |
| Remick, Capt. Enoch, House |
| Richards, Dexter, & Sons Woolen Mill |
| Richards Free Library |
| Richmond Community Church |
| Richmond School House No. 6 |
| Robie's Country Store |
| Rochester Commercial and Industrial District |
| Rogers, George, House |
| Rollinsford Grade School |
| Rollinsford Town Hall |
| Rossiter, William, House |
| Rowe, Benjamin, House |
| Russell-Colbath House |
| Rye Town Hall |
| Saint Anne Historic District |
| Sainte Marie Roman Catholic Church Parish Historic District |
| Salem Common Historic District |
| Salisbury Academy Building |
| Samuel Morey Memorial Bridge, The |
| Sanders, G. O., House |
| Sandown Depot, Boston and Maine Railroad |
| Sawyer-Medlicott House |
| Sawyer Tavern |
| Scamman Farm |
| Scammon Farm Historic District |
| Second Free Baptist Church |
| Second Rindge Meetinghouse, Horsesheds and Cemetery |
| Sewall, Edward, Garrison |
| Shapley Town House |
| Shedd-Porter Memorial Library |
| Shepard Hill Historic District |
| Silver Lake Farm |
| Smith and Dow Block |
| Smith Chapel |
| Smith, Gov. John Butler, House |
| Smith-Mason Farm |
| Smith Meeting House |
| Smith's Corner Historic District |
| Smith, Simeon P., House |
| Smyth Public Library |
| Somoresworth High School |
| South Congregational Church |
| South Danbury Christian Church |
| South Meetinghouse |
| South Sutton Meeting House |
| Springfield Town Hall and Howard Memorial Methodist Church |
| Spring Hill Farm |
| Square Schoolhouse |
| St. Andrew's By-The-Sea |
| Stanley Tavern |
| St. Anne Church |
| Stark, Gen. George, House |
| Stark Park |
| Stark Union Church |
| Stationmaster's House |
| Stevens Memorial Hall |
| St. George's School and Convent |
| St. Mark's Episcopal Church |
| Stone Arch Underpass |
| Stone School |
| Straw, William Parker, House |
| Sullivan House |
| Sullivan, Roger, House |
| Suncook Village Commercial-Civic Historic District |
Data from United States Park Service and Wikidata
