Clermont County Flag

Clermont County

State:
Ohio
County Seat:
Batavia

Clermont County's 2026 population is estimated at 219,640, reflecting a 1.23% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). Clermont County is the 14th largest county in Ohio. The 2010 population was 197,613 and has grown 11.15% since 2010.

219,640
Total Population
485
Population Density (mi²)
14
Population Rank (State)
2.7K 1.23%
Annual Population Growth

Clermont County Population

Demographics

Economics and Income Statistics