Richland County Flag

Richland County

State:
Ohio
County Seat:
Mansfield

Richland County's estimated 2026 population is 124,553 with a growth rate of -0.12% in the past year according to the most recent United States census data. Richland County is the 23rd largest county in Ohio. The 2010 population was 124,156 and has seen a growth of 0.32% since that time.

124,553
Total Population
252
Population Density (mi²)
23
Population Rank (State)
-150 -0.12%
Annual Population Growth

Richland County Population

Demographics

Economics and Income Statistics