
Eau Claire County
- State:
- Wisconsin
- County Seat:
- Eau Claire
Eau Claire County's estimated 2025 population is 110,137 with a growth rate of 1.02% in the past year according to the most recent United States census data. Eau Claire County is the 14th largest county in Wisconsin. The 2010 population was 99,012 and has seen a growth of 11.24% since that time.