All - Architectural style - Georgian architecture
| Otterbein Church |
| Paca House and Garden |
| Page, Thomas Nelson, House |
| Palmer, Amos, House |
| Parker, Capt. Nathaniel, Red House |
| Parker House |
| Parker, Samuel, House |
| Parson's Bend |
| Parsons-Taylor House |
| Pearson, Franklin, House |
| Peggy Stewart House |
| Pence Springs Hotel Historic District |
| Pennterra |
| Pettit's Ford |
| Phinney, William and Jane, House |
| Pillsbury-French House |
| Plant City High School |
| Pleasant Grove Community Church and Cemetery |
| Portland Fire Station No. 17 |
| Potter, Arnold, House |
| Powell-McMullan House |
| Presbyterian Orphanage of Missouri |
| Presbyterian Orphans Home |
| President's House |
| Priestley, Joseph, House |
| Prospect Avenue Historic District |
| Prospect House |
| Public School No. 10 |
| Public School No. 37 |
| Quality Hill |
| Quarters A, Washington Navy Yard |
| Queens County Savings Bank |
| Rabb, Andrew, House |
| Rafael M. Labra High School |
| Randall-Hale Homestead |
| Randolph House |
| Readbourne |
| Read, Thomas Buchanan, School |
| Real Estate Building |
| Reed's Creek Farm |
| Reformed Dutch Church of Blawenburg |
| Renick Farm |
| Ricketts, Clemuel, Mansion |
| Ridge, The |
| Riegel, Benjamin, House |
| Rieth, Andreas, Homestead |
| RittenhouseTown Historic District |
| Riversdale |
| Rocklands |
| Rockledge |
| Rocky Hill Congregational Church |
| Rocky Mills |
| Rose Hill |
| Rose Hotel |
| Rose, John and Ruth, House |
| Roslyn Savings Bank Building |
| Rothsay |
| Rowen, William, School |
| Royall, Isaac, House |
| Rudisel, Ludwick, Tannery House |
| Rumford, Count, Birthplace |
| Rush, Benjamin, House |
| Russell House |
| Ruth Mansion House |
| Sanford-Curtis-Thurber House |
| Sanford-Humphreys House |
| Sanger, Asa, House |
| Sanger, Richard, III, House |
| Savin-Wilson House |
| Sawin-Bullen-Bullard House |
| School Street School |
| Schricker, John C., House |
| Schuyler, Philip, Mansion |
| Scott, Andrew, House |
| Scott, Upton, House |
| Sears-Ferris House |
| Sessions-Pope-Sheild House |
| Sever, William, House |
| Shallcross, Sereck, House |
| Shaw-Cude House |
| Shaw Mansion |
| Shippen Manor |
| Shook-Welch-Smathers House |
| Simond, Col. Benjamin, House |
| Simpson, Charles S., House |
| Sixth District Courthouse |
| Smith, Elven C., House |
| Smith, James, Homestead |
| Smith, Shubel, House |
| Smith, Thomas and Esther, House |
| Snow Hill |
| Snowland |
| Somerset Apartments |
| Sophia's Dairy |
| Sovereign Hotel |
| Speedwell Forge Mansion |
| Springer-Cranston House |
| Spring Garden |
| Stanly, John Wright, House |
| Staples-Crafts-Wiswall Farm |
Data from United States Park Service and Wikidata
