Sunbury is a village in Delaware County, Ohio, United States. The population was 4,389 during the 2010 census. The village is centered on a New England-styled traditional town square with a historic village hall located in the center of a village green. Located here is a major Showa Corporation factory, which produces automotive parts for Honda of America. The village is home to a K-12 public school district, the Big Walnut Local School District and their sports team, the 'Golden Eagles'. The district also serves students in the neighboring town of Galena, Ohio.