Mahoning County Flag

Mahoning County

State:
Ohio
County Seat:
Youngstown

Mahoning County's 2026 population is estimated at 225,382, reflecting a -0.09% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). Mahoning County is the 13th largest county in Ohio. The 2010 population was 238,315 and has grown -5.43% since 2010.

225,382
Total Population
548
Population Density (mi²)
13
Population Rank (State)
-202 -0.09%
Annual Population Growth

Mahoning County Population

Demographics

Economics and Income Statistics