7 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Montello | 1 | 1,451 | 1,446 | 0.07% | 738 | 1.97 | City |
| Westfield | 2 | 1,335 | 1,304 | 0.45% | 849 | 1.57 | Village |
| Oxford | 3 | 534 | 534 | 0% | 636 | 0.84 | Village |
| Endeavor | 4 | 435 | 432 | 0.23% | 689 | 0.63 | Village |
| Neshkoro | 5 | 422 | 412 | 0.48% | 210 | 2.01 | Village |
| Briggsville | 6 | 363 | 303 | 7.4% | 230 | 1.58 | CDP |
| Packwaukee | 7 | 194 | 194 | -2.51% | 404 | 0.48 | CDP |
Montello is the largest city in Marquette County, with a population of 1,451.
Packwaukee is the smallest city in Marquette County.
There are 7 cities in Marquette County, Wisconsin.