11 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Marinette | 1 | 11,000 | 11,112 | -0.2% | 1,569 | 7.01 | City |
| Peshtigo | 2 | 3,366 | 3,418 | -0.3% | 1,156 | 2.91 | City |
| Niagara | 3 | 1,562 | 1,604 | -0.51% | 566 | 2.76 | City |
| Crivitz | 4 | 1,102 | 1,094 | 0.18% | 695 | 1.58 | Village |
| Coleman | 5 | 719 | 728 | -0.28% | 533 | 1.35 | Village |
| Wausaukee | 6 | 597 | 597 | 0% | 434 | 1.38 | Village |
| Pound | 7 | 350 | 354 | -0.28% | 395 | 0.89 | Village |
| Pembine | 8 | 230 | 203 | 0.88% | 387 | 0.59 | CDP |
| Goodman | 9 | 182 | 276 | -3.19% | 110 | 1.66 | CDP |
| Amberg | 10 | 111 | 175 | -4.31% | 69 | 1.61 | CDP |
| Dunbar | 11 | 108 | 56 | 8% | 102 | 1.06 | CDP |
Marinette is the largest city in Marinette County, with a population of 11,000.
Dunbar is the smallest city in Marinette County.
There are 11 cities in Marinette County, Wisconsin.