Atchison County Flag

Atchison County

State:
Kansas
County Seat:
Atchison

Atchison County's estimated 2026 population is 16,463 with a growth rate of 0.65% in the past year according to the most recent United States census data. Atchison County is the 31st largest county in Kansas. The 2010 population was 16,855 and has seen a growth of -2.33% since that time.

16,463
Total Population
38
Population Density (mi²)
31
Population Rank (State)
107 0.65%
Annual Population Growth

Atchison County Population

Demographics

Economics and Income Statistics