Decatur County Flag

Decatur County

State:
Kansas
County Seat:
Oberlin

Decatur County's estimated 2025 population is 2,758 with a growth rate of 0.84% in the past year according to the most recent United States census data. Decatur County is the 82nd largest county in Kansas. The 2010 population was 2,957 and has seen a growth of -6.73% since that time.

2,758
Total Population
3
Population Density (mi²)
82
Population Rank (State)
23 0.84%
Annual Population Growth

Decatur County Population

Demographics

Economics and Income Statistics