Delaware County, Ohio’s fastest growing county, is home to both families and businesses who take pride in where they belong and where they’re going. Located just north of Ohio’s state capital in Columbus, Delaware County is home to some of Ohio’s brightest businesses, best attractions, and happiest residents. County Offices Include: Elected Officials Offices: Auditor Board of Commissioners Clerk of Courts Common Pleas Court Coroner Engineer Juvenile Court Probate Court Prosecutor Recorder Sheriff Treasurer Other Offices and Agencies: Adult Probation Board of Elections Building Safety Child Support Enforcement Agency Economic Development Emergency Communications Emergency Management / Homeland Security Emergency Medical Services Human Resources Job and Family Services Records Center Regional Planning Regional Sewer District Soil and Water Conservation District Veterans Services