Fayette County Flag

Fayette County

State:
Iowa
County Seat:
West Union

Fayette County's estimated 2026 population is 18,984 with a growth rate of -0.33% in the past year according to the most recent United States census data. Fayette County is the 36th largest county in Iowa. The 2010 population was 20,860 and has seen a growth of -8.99% since that time.

18,984
Total Population
26
Population Density (mi²)
36
Population Rank (State)
-63 -0.33%
Annual Population Growth

Fayette County Population

Demographics

Economics and Income Statistics