12 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Cloquet | 1 | 12,569 | 12,571 | 0% | 357 | 35.22 | City |
| Hermantown | 2 | 10,190 | 10,220 | -0.06% | 297 | 34.36 | City |
| Moose Lake | 3 | 3,150 | 2,785 | 2.37% | 960 | 3.28 | City |
| Esko | 4 | 2,248 | 2,222 | 1.17% | 462 | 4.86 | CDP |
| Scanlon | 5 | 1,014 | 988 | 0.5% | 1,182 | 0.86 | City |
| Carlton | 6 | 958 | 962 | -0.1% | 252 | 3.81 | City |
| Barnum | 7 | 601 | 610 | -0.33% | 596 | 1.01 | City |
| Wrenshall | 8 | 453 | 422 | 1.34% | 304 | 1.49 | City |
| Mahtowa | 9 | 365 | 373 | 0% | 34 | 10.59 | CDP |
| Cromwell | 10 | 251 | 238 | 1.21% | 136 | 1.84 | City |
| Kettle River | 11 | 177 | 169 | 1.14% | 459 | 0.39 | City |
| Wright | 12 | 171 | 165 | 0.59% | 117 | 1.46 | City |
Cloquet is the largest city in Carlton County, with a population of 12,569.
Wright is the smallest city in Carlton County.
There are 12 cities in Carlton County, Minnesota.