Ohio - Architectural style - Italianate architecture
| Pollock, John C., House |
| Portsmouth Fire Department No. 1 |
| Prentiss, Frederick, House |
| Ratterman, Bernard, House |
| Rattermann, Heinrich A., House |
| Rawlings-Brownell House |
| Rawson House |
| Reeves, Jeremiah, House and Carriage House |
| Renick Farm |
| Riddle-Friend House |
| Salem Church |
| Salem Methodist Church Complex |
| Sarchet-Burgess House |
| Schmick, Charles Nelson, House |
| Sessions House |
| Sharp, Morris, House |
| Smith, Benjamin, House |
| Southworth House |
| St. Patrick Catholic Church and Rectory |
| Street, John, House |
| Sts. Peter & Paul Church and Rectory |
| Swetland House |
| Sycamore-13th Street Grouping |
| Tangeman, John, House |
| Tanglewood |
| Thompson, Cassius Clark, House |
| Trimble, James S., House |
| Urbana College Historic Buildings |
| Van Horn Building |
| Versailles Town Hall and Wayne Township House |
| Victory Theater Building |
| Village Hobby Shop |
| Walker, Cristopher C., House and Farm |
| Walling, Ansel T., House |
| Walters, Dr. Jefferson A., House |
| Wells, Harvey, House |
| Wilmot United Brethren Church |
| Wintzer, Charles, Building |
| York Lodge No. 563 |
Data from United States Park Service and Wikidata
