All - Architectural style - Queen Anne style
| Peet, David N., Farmstead |
| Pendleton, William Kimbrough, House |
| Pennington, S. A., House |
| Perkins, Arthur, House |
| Perkins, Charles W. and Nellie, House |
| Perrigo, George, House |
| Peters, Charles, Sr., House |
| Peterson-Burr House |
| Pfleger Family Houses |
| Phillips, Alfred, House |
| Phillips, John Archibald, House |
| Phipps, William H., House |
| Pincus Building |
| Plummer, Amos and Lillie, House |
| Poehler, August F., House |
| Poland Spring Beach House, (Former) |
| Pomeroy, L. A., House |
| Port, Dr. Luke A., House |
| Porter-Crawford House |
| Porter, Walworth D., Duplex Residence |
| Poultry Building and Incubator House |
| Powell House |
| Prentiss, Frederick, House |
| Prentiss-Tulford House |
| Provost, Arthur, Three-Decker |
| Pyle House |
| Quarnberg, Peter, House |
| Queen Anne Cottage and Coach Barn |
| Queen Anne House |
| Rademacher, Frank J., House |
| Ranshaw, Samuel and Emma A., House |
| Ray, Frank G., House & Carriage House |
| Reagan's, Ronald, Boyhood Home |
| Redwood Cottage |
| Reed-Wells House |
| Regez, Jacob, Sr., House |
| Renwick, Helen Goodwin, House |
| Residence Plantation House |
| Rewerts, George, House |
| Rice, John C., House |
| Rice, Napoleon, House |
| Richard, Hugh H., House |
| Richardson-Ulrich House |
| Ridyard, B. E., Three-Decker |
| Riekenberg, J. H., House |
| Riggert, William, House |
| Riverdale Park Historic District |
| River Side Farmhouse |
| Riviere House |
| Robbins, Wendell P. and Harriet Rounds, House |
| Roberts, Earl, House |
| Roberts, Martin W., House |
| Robertson, John A. and Martha, House |
| Robichaux House |
| Roe, Ole K., House |
| Rogers, Henry J,. and Cremora, House |
| Rollinsford Town Hall |
| Roome-Stearns House |
| Ropp, Baker, House |
| Rose, Edward, House |
| Ross, Dr. Robert M., House |
| Ross-Sewell House |
| Roup, Barna C., House |
| Roxbury Presbyterian Church |
| Royer-Williams House |
| Royhl, Adam and Minnie, House |
| Roy, J. Arthur, House |
| Roynane, Catharine, Three-Decker |
| Saitta House |
| Salazar, A.A., House |
| Salem Southern Pacific Railroad Station |
| Salsbury Row House |
| Satterfield, Edward and Julia, House |
| Saunders-Crosby House |
| Sauntry, William, House and Recreation Hall |
| Schaeffer, Michael, House |
| Schendel, Reinhard and Amelia, House |
| Scherck, R. T., House |
| Schermerhorn, Edgar Backus, House |
| Schneider Triangle |
| Schueller, Erwin W., House |
| Sears, Albert H., House |
| Seven Oaks |
| Sharp-Page House |
| Shea, Bridget, Three-Decker |
| Shea, John J. and Agnes, House |
| Shedd-Dunn House |
| Shekey, Albert and Mary, House |
| Shelton-McMurphey House and Grounds |
| Sherburne, Warren E., House |
| Shields, Patrick and Sarah Dobbins, House |
| Shiloh House |
| Shirley Opera House |
| Shivelbine, August and Amalia, House |
| Shook-Vanzant Farm |
| Shorey, Charles, House |
| Short, O. F., House |
| Shute-Meierjurgen Farmstead |
| Siegner, George V., House |
| Silk Stocking Residential Historic District |
Data from United States Park Service and Wikidata
