Cooper County Flag

Cooper County

State:
Missouri
County Seat:
Boonville

Cooper County's 2026 population is estimated at 17,514, reflecting a 1.13% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). Cooper County is the 63rd largest county in Missouri. The 2010 population was 17,601 and has grown -0.49% since 2010.

17,514
Total Population
31
Population Density (mi²)
63
Population Rank (State)
196 1.13%
Annual Population Growth

Cooper County Population

Demographics

Economics and Income Statistics