Mills County Flag

Mills County

State:
Iowa
County Seat:
Glenwood

Mills County's estimated 2026 population is 14,838 with a growth rate of 0.3% in the past year according to the most recent United States census data. Mills County is the 50th largest county in Iowa. The 2010 population was 15,076 and has seen a growth of -1.58% since that time.

14,838
Total Population
34
Population Density (mi²)
50
Population Rank (State)
45 0.3%
Annual Population Growth

Mills County Population

Demographics

Economics and Income Statistics