Hardin County Flag

Hardin County

State:
Ohio
County Seat:
Kenton

Hardin County's 2026 population is estimated at 29,890, reflecting a -0.61% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). Hardin County is the 72nd largest county in Ohio. The 2010 population was 32,126 and has grown -6.96% since 2010.

29,890
Total Population
64
Population Density (mi²)
72
Population Rank (State)
-182 -0.61%
Annual Population Growth

Hardin County Population

Demographics

Economics and Income Statistics