National Historic Register properties in Delaware, Ohio

• Austin Hall
• Bieber, George, House and Farm
• Cleveland, Columbus, Cincinnati & Indianapolis Railroad Depot
• Crist Tavern Annex-Millworkers Boarding House
• Delaware County Courthouse
• Delaware County Jail and Sheriff's Residence
• Delaware Post Office
• Delaware Public Library
• Edwards Gymnasium/Pfieffer Natatorium
• Elliott Hall, Sturges Library, And Merrick Hall
• Greenwood Farm
• High House
• Historic Northwest District
• Limestone Vale
• Meeker, Forrest, House and Farm
• Mill Worker House No. 1
• Mill Worker House No. 3
• Mill Worker House No. 4
• Mill Worker House No. 5
• Monnett Hall
• Neff, Edward E., House
• Ohio Wesleyan University Fraternity Hill Historic District
• Ohio Wesleyan University Student Observatory
• Perry, Norman Dewey, House
• Richey, James, Farmhouse
• Sanborn Hall
• Sandusky Street Historic District
• Selby Field
• Slocum Hall
• St. Mary's Church and Rectory
• Stratford Methodist Episcopal Church
• Stuyvesant Hall
• Ufferman Site
• University Hall-Gray's Chapel
• Van Deman, Henry, House
• Warren Tavern Complex