National Historic Register properties in Mount Vernon, Ohio

• Downtown Mount Vernon Historic District
• East Gambier Street District
• East High Street Historic District
• Knox County Courthouse
• Knox County Infirmary
• Loveridge, Richard and Ann, House
• McFarland, James, House
• McLaughlin Mound
• North Main-North Gay Streets Historic District
• Pennsylvania Depot
• Round Hill
• Thompson, Enoch, House
• Woodward Opera House