Sunbury is a village in Delaware County, Ohio, United States. The population was 4,400 at the 2010 census. The village is centered around a New England-esque traditional town square with the historic village hall located in the center of a village green. The village is home to a major American Showa manufacturing facility, which manufactures automotive parts for Honda of America.
According to the United States Census Bureau, the village has a total area of 2.5 square miles (6.6 km²), all of it land.
Sunbury is located north of Galena, near Lewis Center and Delaware.