Harrison County Flag

Harrison County

State:
Ohio
County Seat:
Cadiz

Harrison County's estimated 2025 population is 13,775 with a growth rate of -1.37% in the past year according to the most recent United States census data. Harrison County is the 85th largest county in Ohio. The 2010 population was 15,816 and has seen a growth of -12.9% since that time.

13,775
Total Population
34
Population Density (mi²)
85
Population Rank (State)
-192 -1.37%
Annual Population Growth

Harrison County Population

Demographics

Economics and Income Statistics