Arkansas - Area of significance: Architecture
| Ready, E. S., House |
| Rector Commercial Historic District |
| Rector House |
| Rector Log Barn |
| Rector Waterworks Building |
| Redman, Oscar, Building |
| Reed, Will, Farm House |
| Reeves House |
| Reeves, W. F., House |
| Reichardt House |
| Reid House |
| Remmel Apartments |
| Remmel Apartments |
| Remmel Apartments |
| Remmel Flats |
| Retan, Albert, House |
| Retan House |
| Reutlinger House |
| Rhew, J. C., Co. Packing Shed |
| Rialto Theater |
| Rialto Theatre |
| Rice House |
| Rice, James A., House |
| Riceland Hotel |
| Rice-Upshaw House |
| Richardson-Turner House |
| Ridge House |
| Ridgeway Hotel Historic District |
| Rife Farmstead |
| Rife House |
| Riggs-Hamilton American Legion Post No. 20 |
| Rison Cities Service Station |
| Rison Texaco Service Station |
| Ritchie Grocery Building |
| Riviera Hotel |
| Roasting Ear Church and School |
| Robertson Drugstore |
| Robertson House |
| Robins, Frank E., House |
| Robinson, Dr., House |
| Robinson Historic District |
| Robinson, Joseph Taylor, Memorial Auditorium |
| Robins, Reuben W., House |
| Rock Building |
| Rock Island-Argenta Depot |
| Rock Island Depot |
| Rocky Branch School |
| Rogers City Hall |
| Rogers, Horace Franklin, House |
| Rogers House |
| Rogers Milk Plant Building |
| Rogers Post Office Building |
| Ronoake Baptist Church |
| Rose Building |
| Rosedale Plantation Barn |
| Roselawn |
| Roselawn Memorial Park Gatehouse |
| Rosenwald School |
| Rose, U. M., School |
| Ross Building |
| Roth-Rosenzweig House |
| Roundtop Filling Station |
| Routh-Bailey House |
| Royal Theatre |
| Roy's Office Supply Building |
| Royston, Grandison D., House |
| Rumph House |
| Rumph Mortuary |
| Runyan, J. P., House |
| Rusher Hotel |
| Rush, Gene, House |
| Rush Historic District |
| Rushton Clinic, The |
| Russell, John, House |
| Russellville Downtown Historic District |
| Russellville Masonic Temple |
| Russellville Public Library |
| Saddle Store |
| Saenger Theater |
| Safferstone House |
| Sager, Simon, Cabin |
| Sailor, C.L., House |
| Saint Andrews Catholic Cathedral |
| Saint Andrew's Episcopal Church |
| Saint Scholastica Convent |
| Saline County Courthouse |
| Salter, James and Jewell, House |
| Sanders-Hollabaugh House |
| Sanders House |
| Sandidge, June, House |
| Sardis Methodist Church |
| Scanlan, Art, House |
| Schaer, Fred and Lucy Alexander, House |
| Schaer House |
| School Addition Historic District |
| Schriver House |
| Science Building |
| Scott City County Jail, (Old) |
| Scott County Courthouse |
| Scott-Davis House |
Data from United States Park Service and Wikidata
