National Historic Register properties in Hillsboro, Ohio

• Bell, C.S., Foundry and Showroom
• Bell Mansion
• Bell's First Home
• Bell's Opera House
• East Main Street Historic District
• Eubanks-Tytus House
• Highland County Courthouse
• Highland Egg and Poultry Company Building
• Hillsboro Historic Business District
• Lilley, Robert D., House
• Morrow-Overman-Fairley House
• Mother Thompson House
• New Market Township Community House
• Saint Mary's Episcopal Church and Parish House
• Scott, William, House
• Trop Farm