Barton County Flag

Barton County

State:
Missouri
County Seat:
Lamar

Barton County's 2026 population is estimated at 11,665, reflecting a -0.22% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). Barton County is the 78th largest county in Missouri. The 2010 population was 12,384 and has grown -5.81% since 2010.

11,665
Total Population
20
Population Density (mi²)
78
Population Rank (State)
-26 -0.22%
Annual Population Growth

Barton County Population

Demographics

Economics and Income Statistics