Defiance County Flag

Defiance County

State:
Ohio
County Seat:
Defiance

Defiance County's estimated 2026 population is 38,251 with a growth rate of -0.11% in the past year according to the most recent United States census data. Defiance County is the 65th largest county in Ohio. The 2010 population was 39,083 and has seen a growth of -2.13% since that time.

38,251
Total Population
93
Population Density (mi²)
65
Population Rank (State)
-41 -0.11%
Annual Population Growth

Defiance County Population

Demographics

Economics and Income Statistics