How many people live in Eau Claire County, WI?
Updated Apr. 6, 2026Refreshed annually
In 2024, there were about 108,800 people living in Eau Claire County, WI. That makes Eau Claire County the 14th-most populous county in Wisconsin. It is home to 1.8% of people living in the state.
109K
population of Eau Claire County, WI (2024)
1.8%
County share of the Wisconsin population (2024)
About 108,800 people lived in Eau Claire County, WI in 2024.
Population estimates, 2000–2024
What are Eau Claire County, WI’s age demographics?
About 19,500 Eau Claire County residents are aged 65 and older in 2024. That represents 17.9% of its population. For comparison, the age group represents 19.6% of Wisconsin’s population and 18% in the US overall.
Another 20,900 Eau Claire County residents, or 19.2% of the population, were children under 18. For comparison, the age group represents 20.8% of Wisconsin’s population and 21.6% in the US overall.
A higher share of Eau Claire County, WI's population is aged 18–24 than the US as a whole.
Population estimates by age group, (2024)
What are Eau Claire County, WI’s racial and ethnic demographics?
Non-Hispanic white residents make up 88.2% of the Eau Claire County, WI population, higher than the national share of 57.5%.
In contrast, Eau Claire County’s Hispanic population accounts for 3.4%, below the 20% nationwide, and the non-Hispanic Black or African American population makes up 1.2% of the county, compared with 12.6% nationally.
Racial and ethnic make up differ based on location. These figures reflect how people identified their race alone (not in combination with other races), and separate out Hispanic or Latino ethnicity, following Census reporting standards.
Eau Claire County, WI has a higher share of a non-Hispanic white population than Wisconsin as a whole.
Population estimates by race and ethnicity, (2024)
The largest city or town in Eau Claire County, WI is Eau Claire with about 70,000 residents in 2024.
Cities and towns in Eau Claire County, WI ranked by population
Population (2024), includes only portions within county
| City or town | Population | |
|---|---|---|
| 1. | Eau Claire (pt.) | 69,970 |
| 2. | Altoona | 9,302 |
| 3. | Washington | 7,506 |
| 4. | Pleasant Valley | 3,842 |
| 5. | Seymour | 3,245 |
| 6. | Union | 2,571 |
| 7. | Bridge Creek | 2,181 |
| 8. | Brunswick | 1,926 |
| 9. | Augusta | 1,495 |
| 10. | Fall Creek | 1,391 |
Keep exploring
Methodology
USAFacts standardizes data, in areas such as time and demographics, to make it easier to understand and compare.
The analysis was generated with the help of AI and reviewed by USAFacts for accuracy.
Page sources
USAFacts endeavors to share the most up-to-date information available. We sourced the data on this page directly from government agencies; however, the intervals at which agencies publish updated data vary.
