8 cities
| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| River Falls | 1 | 18,545 | 16,315 | 2.05% | 2,487 | 7 | City |
| Prescott | 2 | 4,712 | 4,327 | 1.38% | 1,663 | 3 | City |
| Ellsworth | 3 | 3,340 | 3,343 | 0% | 880 | 4 | Village |
| Spring Valley | 4 | 1,466 | 1,406 | 0.69% | 370 | 4 | Village |
| Elmwood | 5 | 808 | 822 | -0.25% | 533 | 2 | Village |
| Plum City | 6 | 588 | 597 | -0.17% | 564 | 1 | Village |
| Bay City | 7 | 456 | 444 | 0.44% | 772 | 1 | Village |
| Maiden Rock | 8 | 119 | 116 | 0.85% | 99 | 1 | Village |
River Falls is the largest city in Pierce County, with a population of 18,545.
Maiden Rock is the smallest city in Pierce County, with a population of 119.
There are 8 cities in Pierce County, Wisconsin.