5 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Eau Claire | 1 | 71,230 | 69,510 | 0.49% | 2,075 | 34.33 | City |
| Altoona | 2 | 9,911 | 8,351 | 3.25% | 1,996 | 4.97 | City |
| Augusta | 3 | 1,494 | 1,569 | -0.99% | 675 | 2.21 | City |
| Fall Creek | 4 | 1,403 | 1,427 | -0.36% | 685 | 2.05 | Village |
| Fairchild | 5 | 458 | 452 | 0.22% | 315 | 1.46 | Village |
Eau Claire is the largest city in Eau Claire County, with a population of 71,230.
Fairchild is the smallest city in Eau Claire County.
There are 5 cities in Eau Claire County, Wisconsin.