Wapello County Flag

Wapello County

State:
Iowa
County Seat:
Ottumwa

Wapello County's 2026 population is estimated at 36,209, reflecting a 0.73% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). Wapello County is the 20th largest county in Iowa. The 2010 population was 35,679 and has grown 1.49% since 2010.

36,209
Total Population
84
Population Density (mi²)
20
Population Rank (State)
264 0.73%
Annual Population Growth

Wapello County Population

Demographics

Economics and Income Statistics