Clark County Flag

Clark County

State:
Ohio
County Seat:
Springfield

Clark County's estimated 2025 population is 134,366 with a growth rate of -0.09% in the past year according to the most recent United States census data. Clark County is the 22nd largest county in Ohio. The 2010 population was 138,272 and has seen a growth of -2.82% since that time.

134,366
Total Population
339
Population Density (mi²)
22
Population Rank (State)
-122 -0.09%
Annual Population Growth

Clark County Population

Demographics

Economics and Income Statistics