Start My Family Tree Welcome to Geni, home of the world's largest family tree.
Join Geni to explore your genealogy and family history in the World's Largest Family Tree.

Delaware County, Ohio

Project Tags

view all


Please add profiles for those who were born, lived or died in Delaware County, Ohio.

Official Website

The county was formed in 1808 from Franklin County, Ohio. Both the county and its seat are named after the Delaware Indian tribe. It is the birthplace of US President Rutherford B. Hayes.

Adjacent Counties

Cities & Villages

  • Ashley
  • Columbus (part)
  • Delaware (County Seat)
  • Dublin (part)
  • Galena
  • Ostrander
  • Powell
  • Shawnee Hills
  • Sunbury
  • Westerville (part)

Other Townships & Communities: Africa, Alum Creek, Bellepoint, Berkshire, Berlin, Brown, Carpenter's Mill, Center Village, Cheshire, Coles Mills, Concord, Condit, Cones Mills, East Liberty, Edinburgh, Genoa, Harlem, Hyatts, Kilbourne, Kingston, Kingston Center, Leonardsburg, Lewis Center, Liberty, Marlboro, Norton, Olive Green, Orange, Oxford, Porter, Radner, Rome, Scioto, Stratford, Thompson, Trenton, Troy, Vans Valley and White Sulphur



National Register of Historic Places

Delaware County Genealogical Society

Genealogy Trails

Genealogy Express

OH Gen Web


Ohio Memory Digital Collection