All - Architectural style - Greek Revival architecture
| Philipsburg Historic District |
| Phillipi House |
| Phillips' Folly |
| Phillips House |
| Phillips, John, House |
| Phillips, Judge Alexander H., House |
| Phillips-Manning House |
| Phinney, James, House |
| Phlegar Farm |
| Phoenix Hall-Johnson-Harper House |
| Phoenix Masonic Lodge No. 8 |
| Phoenix Mill Farm |
| Phoenixville Historic District |
| Pickaway |
| Piedmont |
| Pierce, Charles, House |
| Pierce, James, Jr., House |
| Pierson-Griffiths House |
| Pigford House |
| Pigtown Historic District |
| Pike, Abram W., House |
| Pike-Fletcher-Terry House |
| Pile, Benjamin, House |
| Pilgrim Hall |
| Pillow Place |
| Pillsbury-French House |
| Pine Bloom Plantation |
| Pine Hall |
| Pineland, The |
| Pine Meadow Historic District |
| Pine View Farm |
| Pineville Historic District |
| Pinkerton Hall |
| Pinney, Dr. Eli, House |
| Piper, Daniel S., House |
| Pippen, Littleberry, House |
| Pippert House |
| Pistol Factory Dwelling |
| Pitt, Newton M., House |
| Pitts, Dr. William H., House |
| Pitts' Folly |
| Pittston Congregational Church |
| Pitzer, Elias, House |
| Plainfield Town Hall |
| Planters Hall |
| Platt-Cady Mansion |
| Plattenburg, Wesley, House |
| Pleasant Grove |
| Pleasant Grove Town Hall |
| Pleasant Hill/Hawkins House |
| Pleasant Hill Methodist Church |
| Pleasant Hills |
| Pleasant Street Congregational Church |
| Pleasant Valley Methodist Church |
| Pleasant View |
| Plough Inn |
| Plumb Grove |
| Plum Grove |
| Plummer, Capt. John, House |
| Poague, Margaret E., House |
| Pogue House |
| Poillon-Seguine-Britton House |
| Point Farm |
| Point of Fork Plantation |
| Point of Rocks |
| Point Pleasant Historic District |
| Poland Center School |
| Polhemus, Joseph O., House |
| Polk County Courthouse |
| Pollard, George, House |
| Pollard-Nelson House |
| Pomaria |
| Pomeroy, Alanson, House |
| Ponder, Ephraim, House |
| Pond Hill School |
| Poole, William, House |
| Pop Castle |
| Poplar Grove |
| Poplar Hall |
| Porter House |
| Porter, Rev. Dr. Elbert S., House |
| Porter-York House |
| Portico Row |
| Portland First Congregational Church |
| Portsmouth Courthouse |
| Portville Free Library |
| Port Washington Light Station |
| Post House |
| Post Mills Church |
| Poteat House |
| Potter County Courthouse |
| Potter, William, House |
| Potter-Williams House |
| Pottorf, Henry and Mary, House and Farmstead |
| Poughkeepsie City Hall |
| Poulsen-Hall House |
| Pound-Hitchens House |
| Pound, John, Store |
| Powell-McMullan House |
| Powers Home |
Data from United States Park Service and Wikidata
