what county de graff ohio
Sponsored Topics. De Graff is a village located in Logan County, Ohio, United States. The population was 1,212 at the 2000 census. A branch of the Logan County District Library serves the De Graff community. Different sources format the community's name in several different ways: besides the official De Graff, the name has been rendered De Graft, DeGraff, Degraff, and Degraft. Legal Help