
De Graff
- County:
- Logan County
- County Seat:
- No
- Area (mi²):
- 1.003
- State:
- Ohio
De Graff is a village located in Logan County, Ohio. De Graff has a 2025 population of 1,251. De Graff is currently declining at a rate of 0% annually and its population has increased by 0.08% since the most recent census, which recorded a population of 1,250 in 2020.
The average household income in De Graff is $106,453 with a poverty rate of 7.61%. The median age in De Graff is 37.9 years: 37.6 years for males, and 38.2 years for females.