5 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Oshkosh | 1 | 67,324 | 66,913 | 0.12% | 2,419 | 28 | City |
| Neenah | 2 | 27,529 | 27,393 | 0.1% | 2,847 | 10 | City |
| Menasha | 3 | 18,471 | 18,278 | 0.21% | 3,056 | 6 | City |
| Omro | 4 | 3,639 | 3,662 | -0.14% | 1,487 | 2 | City |
| Winneconne | 5 | 2,496 | 2,533 | -0.32% | 1,683 | 1 | Village |
Oshkosh is the largest city in Winnebago County, with a population of 67,324.
Winneconne is the smallest city in Winnebago County, with a population of 2,496.
There are 5 cities in Winnebago County, Wisconsin.