All - Architectural style - Colonial Revival architecture
| Ridgeview Public Library, (Former) |
| Ridyard, Albert, Three-Decker |
| Riley-Bolten House |
| Riley Hill School |
| Ringling, Charles, House |
| Rippavilla |
| Risley School |
| Rittenhouse, David, Junior High School |
| Ritz Theatre |
| Riverside |
| River Terrace Apartments |
| Rives, James C., House |
| Rix, Charles N., House |
| Roach-Ison House |
| Robbins, Nathaniel and Esther (Savidge), House |
| Robbins, Royal E., School |
| Roberts Hotel |
| Roberts House |
| Robeson County Agricultural Building |
| Robins, Frank E., House |
| Robinson, Dr., House |
| Robinson Hall-Louisiana Tech University |
| Robinson, P., Fur Cutting Company |
| Robison House |
| Rockcliffe Mansion |
| Rockingham Hotel |
| Rockland High School |
| Rockland Trust Company |
| Rockledge |
| Rock Spring Farm |
| Rockwood |
| Roe, L.I., House |
| Rogers City Hall |
| Rogers House |
| Rogers, Paul H., House |
| Rogers Post Office Building |
| Rogers, Tayloe, House |
| Rogue Elk Hotel |
| Rollinsford Grade School |
| Roma Bakery |
| Roosevelt Hospital |
| Roosevelt, John Ellis, Estate |
| Roosevelt School |
| Roos House |
| Root School |
| Ropp, R.C., House |
| Rosebud County Deaconess Hospital |
| Rose Hill |
| Rose Hill and Community House |
| Rosenwald School |
| Rose, U. M., School |
| Ross, Edgar and Rachel, House |
| Ross, Frank L., Farm |
| Rossi, Mrs. A. F., House |
| Ross Point School |
| Rowland Hall-St. Mark's School |
| Royce, Steven, House |
| Ruby, Turner, House |
| Russell House |
| Russellville Public Library |
| Russ, Joseph W., Jr., House |
| Ruth, Thomas, H. House |
| Ryder Hall |
| Rylander-Kyle House |
| Sacajawea Hotel |
| Sachem Rock Farm |
| Sacket, Cornelius, House |
| Sadler, Herbert A., House |
| Sage, Henry M., Estate |
| Sagtikos Manor |
| Sailor, C.L., House |
| Saint James Mutual Homes |
| Saint Rita Apartments |
| Salem Post Office |
| Salmen, Fritz, House |
| Sample Estate |
| Sample-McDougald House |
| Samuel Edelman Apartments |
| San Antonio Missions National Historical Park |
| San Augustine Residential Historic District |
| Sandbar Plantation House |
| Sanders House |
| Sandwich |
| Sanford High School, Former |
| Sangerville Town Hall |
| San Jose Mission National Historic Site |
| Sapp, William Harrison, House |
| Sara-Thel Court |
| Savage, Orin, Cottage |
| Savery Hotel |
| Sawyer, C. A., House (Second) |
| Scaleby |
| Scarborough High School |
| Schaller Memorial Building |
| Schlack, George, House |
| Schmelzel, H. A., House |
| Schoolhouse at Truxton Canyon Training School |
| Schuetz, E.K., House |
| Schuster Building |
| Scott, A. M., House |
Data from United States Park Service and Wikidata
