
Millfield
- County:
- Athens County
- County Seat:
- No
- Area (mi²):
- 0.567
- State:
- Ohio
Millfield is a CDP located in Athens County, Ohio. Millfield has a 2025 population of 237. Millfield is currently declining at a rate of -2.87% annually and its population has decreased by -19.11% since the most recent census, which recorded a population of 293 in 2020.
The average household income in Millfield is $65,277 with a poverty rate of 5.36%. The median age in Millfield is 67.4 years: 68.1 years for males, and 67.4 years for females.