Sunbury Historic District is a national historic district located at Sunbury, Northumberland County, Pennsylvania. It encompasses 238 contributing buildings in the central business district and surrounding residential areas of Sunbury. The significant residential buildings are constructed of wood or brick, 2 1/2-stories, in a variety of architectural styles including Federal, Colonial Revival, Italianate, and Queen Anne. Notable buildings include the separately listed Northumberland County Courthouse in addition to the County Jail (1876), James Tilghman House (1773), Maclay-Wolverton House (1773-1774), Keithan's Store, Central Hotel, Sunbury Textile Mills (1896), Pennsylvania Railroad Passenger Depot, Edison Hotel, Masonic Temple (1907), Chestnut Street Opera House (1901), and Sunbury Market (1901). It was destroyed by a fire in 1914, and the current structure was built in the same place around 1918.