Trumbull County Flag

Trumbull County

State:
Ohio
County Seat:
Warren

Trumbull County's 2026 population is estimated at 198,130, reflecting a -0.42% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). Trumbull County is the 15th largest county in Ohio. The 2010 population was 209,838 and has grown -5.58% since 2010.

198,130
Total Population
321
Population Density (mi²)
15
Population Rank (State)
-842 -0.42%
Annual Population Growth

Trumbull County Population

Demographics

Economics and Income Statistics