Sunbury is a city in Delaware County, Ohio, United States.

23.1% of all households were made up of individuals, and 8.9% had someone living alone who was 65 years of age or older.

20.8% of all households were made up of individuals, and 9.9% had someone living alone who was 65 years of age or older.

Sunbury is home to the Big Walnut Local School District.

The district also serves students in the neighboring town of Galena, Ohio.

Emergency medical services are provided by the Delaware County EMS and Station 2.

Billy Southworth - American outfielder and manager in Major League Baseball (MLB)