| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density (/mi²) | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Appleton | 1 | 75,367 | 75,583 | -0.11% | 2,976 | 25 | City |
| Fox Crossing | 2 | 19,401 | 18,984 | 0.42% | 1,535 | 13 | Village |
| Kaukauna | 3 | 18,814 | 17,133 | 1.6% | 2,276 | 8 | City |
| Greenville | 4 | 13,515 | 12,736 | 0.95% | 378 | 36 | Village |
| Little Chute | 5 | 11,799 | 11,756 | -0.01% | 1,828 | 6 | Village |
| Kimberly | 6 | 7,598 | 7,345 | 0.56% | 3,306 | 2 | Village |
| Seymour | 7 | 3,648 | 3,541 | 0.55% | 1,308 | 3 | City |
| Combined Locks | 8 | 3,618 | 3,633 | -0.22% | 1,946 | 2 | Village |
| Hortonville | 9 | 3,411 | 3,040 | 2.13% | 1,006 | 3 | Village |
| Black Creek | 10 | 1,329 | 1,357 | -0.45% | 1,333 | 1 | Village |
| Shiocton | 11 | 932 | 942 | -0.32% | 596 | 2 | Village |
| Bear Creek | 12 | 415 | 427 | -0.72% | 450 | 1 | Village |
| Nichols | 13 | 286 | 287 | -0.35% | 323 | 1 | Village |
Appleton is the largest city in Outagamie County, with a population of 75,367.
Nichols is the smallest city in Outagamie County, with a population of 286.
There are 13 cities in Outagamie County, Wisconsin.