Defiance County Flag

Defiance County

State:
Ohio
County Seat:
Defiance

Defiance County's estimated 2025 population is 38,689 with a growth rate of 0.49% in the past year according to the most recent United States census data. Defiance County is the 64th largest county in Ohio. The 2010 population was 39,083 and has seen a growth of -1.01% since that time.

38,689
Total Population
94
Population Density (mi²)
64
Population Rank (State)
187 0.49%
Annual Population Growth

Defiance County Population

Demographics

Economics and Income Statistics