Idaho - Significance region: Local
| Pocatello Westside Residential Historic District |
| Portia Club |
| Post Falls Community United Presbyterian Church |
| Poulson, Jim, House |
| Prairie School II |
| Preston Bungalow |
| Price, Dan, House |
| Price, Fred, Bungalow |
| Price, Herber, Bungalow |
| Price, Joe, House |
| Price, Robert, House |
| Priebe, Walter, House |
| Priest River Commercial Core Historic District |
| Priest River High School |
| Purdum Livery Stable |
| Quay, Greer and Jennie, House |
| Quinn Apartments |
| Rankin Auto Court |
| Rathdrum State Bank |
| Ream, William and Nora, House |
| Redfish Archeological District |
| Red Ives Ranger Station |
| Regan, John, American Legion Hall |
| Reiger, Fred, Houses |
| Relic Hall |
| Rialto, Hotel, The |
| Rice, John C., House |
| Rice Meetinghouse |
| Rice-Packard House |
| Richfield Pump House |
| Rich-Grandy Cabin |
| Rich, Joseph, Barn |
| Rich, Landon, House |
| Rich, William L., House |
| Ricketts, Julian T., House |
| Ridge Avenue Historic District |
| Riggins High School |
| Riggins Motel |
| Ririe Community Hall |
| Ritter, William M., House |
| Riverside Inn |
| Robbins, Corilla J. and Orlando, House |
| Rocky Mountain Bell Telephone Company Building |
| Rogers, Franklin, Bungalow |
| Rogers, Frederick, House |
| Rogerson School |
| Roosevelt School |
| Rosedale Odd Fellows Temple |
| Rose Lake School II |
| Ross Fork Episcopal Church |
| Ross Fork Oregon Short Lines Railroad Depot |
| Rossi, Mrs. A. F., House |
| Roswell Grade School |
| Rowles, Donaldson, House |
| Rupert Town Square Historic District |
| Sacred Hearts of Jesus and Mary Church |
| Salmon City Hall and Library |
| Salmon Falls Dam |
| Salmon Odd Fellows Hall |
| Salubria Lodge No. 31 |
| Sandpoint Community Hall |
| Sandpoint Federal Building |
| Sandpoint High School |
| Sandpoint Historic District |
| Schick, Henry, Barn |
| Schick-Ostolasa Farmstead |
| Schmelzel, H. A., House |
| Schmerschall, John F., House |
| Schreiber, Adolph, House |
| Schubert Theatre |
| Scofield, Anna Nielsen, House |
| Scott, Josiah, House |
| Sealander, Carl S. and Lizzie, Farmstead |
| Sensenig, Emerson and Lucretia, House |
| Settlement School |
| Shane Building |
| Sheidigger, John, House and Outbuildings |
| Shelton L.D.S. Ward Chapel |
| Shepard, L. Fay, House |
| Shepherd Bungalow |
| Shepherd, Earl, Bungalow |
| Shepherd Hardware |
| Shepherd, J. R., House |
| Shepherd, Les and Hazel, Bungalow |
| Shepherd, Ted, Cottage |
| Sherman Park Addition |
| Sherwood, Joseph, House and Store |
| Shilling Avenue Historic District |
| Shoshone Falls Power Plant Caretaker's House |
| Sidenfaden, William, House |
| Sigma Alpha Epsilon Fraternity House |
| Silbaugh, W. H., House |
| Silva, Arthur D., Flume |
| Silva, Arthur D., Ranch |
| Silva, Arthur D., Water Tank |
| Silva, Manuel, Barn |
| Simpson, W. A., House |
| Skattaboe Block |
| Skillern, John, House |
| Sleight, Thomas, Cabin |
Data from United States Park Service and Wikidata
