Missouri - Criteria: C (architecture/engineering)
| Ridgway Apartments |
| Riggio Building |
| Riggs, Absolom, House |
| Ripley County Courthouse |
| Ripple, Otto, Agency |
| Ritchey, Mathew H., House |
| Rivercene |
| Riverview Park |
| Roaring River State Park Bath House |
| Roaring River State Park Dam/Spillway |
| Roaring River State Park Deer Leap Trail |
| Roaring River State Park Honeymoon Cabin |
| Roaring River State Park Hotel |
| Roaring River State Park Shelter Kitchen No. 2 and Rest Room |
| Robert, Johnson and Rand-International Shoe Company Complex |
| Roberts Chevrolet |
| Roberts, J.F., Octagonal Barn |
| Robidoux Hill Historic District |
| Robidoux School |
| Robinson, George R. and Elsie, House |
| Robinson, William, P., House |
| Robnett-Payne House |
| Rocheport |
| Rockcliffe Mansion |
| Rockhill Neighborhood |
| Rock Spring School |
| Rockwell, Bertrand, House |
| Rockwood Court Apartments |
| Rodgers Theatre Building |
| Roeschel-Toennes-Oswald Property |
| Rolla Ranger Station Historic District |
| Ross House |
| Ross, John, House |
| Rott School |
| Rotunda, The |
| Route 66 Steak 'n Shake |
| Row House Building |
| Royal Tire Service Inc. Building |
| Rozier, Louis J. and Harriet, House |
| Ruskaup House |
| Ruthven, John B. and Elizabeth, House |
| Ryan Block |
| Sacred Heart Catholic Church and Parsonage |
| Sacred Heart Church, School and Rectory |
| Saint Matthew's Parish Complex |
| Saint Paul's Episcopal Church |
| Saline County Courthouse |
| Salisbury Square Historic District |
| Sam A. Baker State Park Historic District |
| Sander, Augustus, House |
| Sandy Creek Covered Bridge |
| Sanford B. Ladd School |
| Sanitol Building |
| Sanning, P.A., Store |
| Santa Fe Place Historic District |
| Sappington, Joseph, House |
| Sappington, Thomas J., House |
| Sappington, William B., House |
| Sappington, Zephaniah, House |
| Savoy Hotel and Grill |
| Scarritt Building and Arcade |
| Scarritt, Edward Lucky, House |
| Scarritt, Rev. Nathan, House |
| Scarritt, William Chick, House |
| Schlichtig House |
| Schmidt, Charles J. and Clara B. House |
| Schmidt House |
| Schmitt, Anton, House |
| Schnier, Fred, Building |
| Schollmeyer Building |
| Schoonover House |
| Schowengerdt, Ernst, House |
| Schroer, J. F., House-Store |
| Schwarzer, Franz, House |
| Schwegmann, John F., House |
| Scott, Charles Smith, Memorial Observatory |
| Scott County Courthouse |
| Scottish Rite Cathedral |
| Scruggs-Vandervoort-Barney Warehouse |
| Sears, Roebuck and Company Warehouse Building |
| Second Presbyterian Church |
| Security Building |
| Sedalia Public Library |
| Sehrt, August, House |
| Senior Hall |
| Seven Gables Building |
| Seven Oaks School |
| Seventh District Police Station |
| Sewall Paint and Glass Company Building |
| Shankman Building |
| Shanley Building |
| Shaughnessy, Martin, Building |
| Shelby-Nicholson-Schindler House |
| Shelby, Thomas, House |
| Shell Building, The |
| Shelley, William Francis, House |
| Shivelbine, August and Amalia, House |
| Shobe-Morrison House |
| Shrine of Our Lady of Sorrows |
| Sickles Tavern |
Data from United States Park Service and Wikidata
