Defiance County Flag

Defiance County

State:
Ohio
County Seat:
Defiance

Defiance County's estimated 2026 population is 39,058 with a growth rate of 0.53% in the past year according to the most recent United States census data. Defiance County is the 63rd largest county in Ohio. The 2010 population was 39,083 and has seen a growth of -0.06% since that time.

39,058
Total Population
95
Population Density (mi²)
63
Population Rank (State)
207 0.53%
Annual Population Growth

Defiance County Population

Demographics

Economics and Income Statistics