
Adair County
- State:
- Iowa
- County Seat:
- Greenfield
Adair County's estimated 2025 population is 7,253 with a growth rate of -0.93% in the past year according to the most recent United States census data. Adair County is the 90th largest county in Iowa. The 2010 population was 7,679 and has seen a growth of -5.55% since that time.