All - Constructed - 1850–1859
| Pine Hall |
| Pinkham, Richard, House |
| Pisgah United Methodist Church |
| Pittsylvania County Courthouse |
| Pleasant Grove School |
| Plough Inn |
| Point Au View |
| Point Betsie Light Station |
| Point Bonita Light Station |
| Point Conception Light Station |
| Point Iroquois Light Station |
| Point Isabel Lighthouse |
| Point Pinos Lighthouse |
| Pond, Daniel, Farmhouse |
| Ponder, Ephraim, House |
| Pond, Gideon H., House |
| Pond Hill School |
| Pool Rock Plantation |
| Porter-Leath Home |
| Portland Breakwater Light |
| Portland Mills Bridge |
| Poteat House |
| Potosi Brewery |
| Pottawatomie Baptist Mission Building |
| Pottawatomie Indian Pay Station |
| Pratt, Miles, House |
| Prentiss-Payson House |
| Prentiss, William, House |
| President's House |
| Pressley, Rev. John E., House |
| Prindle, William, Livery Stable |
| Probasco, Henry, House |
| Prospect Congregational Church |
| Prospect Harbor Light Station |
| Protestant Episcopal Church of the Saviour |
| Prudence Island Lighthouse |
| Pugh, Francis, House |
| Pumpkin Island Light Station |
| Quincy Grammar School |
| Racine College |
| Ramsey, Justus, Stone House |
| Ramsey Mill and Old Mill Park |
| Rankin Block |
| Rawley Point Light Station |
| Rayner, Eli, House |
| Reformed Dutch Church of Fishkill Landing |
| Reformed Presbyterian Church of Vernon |
| Reynolds-Weed House |
| Rhodehouse, Nelson, House |
| Rice-Marler House |
| Richardson-Jakway House |
| Richland |
| Ridgewood Cemetery |
| Ringgold Depot |
| Rio Piedras Bridge |
| Riverside Cemetery |
| Riverside Cemetery |
| Riverside Plantation |
| Robb, Alfred A., House |
| Robertson, Col. Elijah Sterling Clack, Plantation |
| Robertson-Yates House |
| Robinson, Charles, House |
| Robinson House |
| Robinson House |
| Robinson-Lewis-G. F. Fessenden House |
| Rock Harbor Lighthouse |
| Rockwood |
| Rodriguez Morales, Juana, House |
| Rogers-Downing House |
| Roling, Henry, House |
| Rombout House |
| Rosedale |
| Rose Hill |
| Rosehill Cemetery Administration Building and Entry Gate |
| Rose Hill Plantation House |
| Ross, Harvey Lee, House |
| Rosswood |
| Rountree, J. H., Mansion |
| Rowe House |
| Russell, Philemon, House |
| Rutland United Brethren in Christ Meeting House and Cemetery |
| Ryerss Mansion |
| Sabine Pass Lighthouse |
| Saint Aidan's Church and Rectory |
| Saint Mark's Episcopal Church |
| Salisbury, Jonas, House |
| Sand Spring Presbyterian Church |
| Sargent, Aaron A., House |
| Scales, Alfred Moore, Law Office |
| Scarritt, Rev. Nathan, House |
| Schindhelm-Drews House |
| Schoolhouse No. 5 |
| School Street School |
| Schrup, John and Marie (Palen) Farmstead Historic District |
| Scott, Hiram D., House |
| Scully Ranch |
| Seabiscuit's Stud Barn |
| Second Reformed Dutch Church of Kingston |
| Sedgwick, Maj. Gen. John, House |
| Seven-Foot Knoll Lighthouse |
Data from United States Park Service and Wikidata
