9 cities
| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Cloquet | 1 | 12,429 | 12,567 | -0.18% | 353 | 35 | City |
| Moose Lake | 2 | 3,110 | 2,788 | 1.77% | 948 | 3 | City |
| Scanlon | 3 | 1,002 | 990 | 0.2% | 1,168 | 1 | City |
| Carlton | 4 | 962 | 962 | 0% | 253 | 4 | City |
| Barnum | 5 | 605 | 619 | -0.33% | 600 | 1 | City |
| Wrenshall | 6 | 466 | 429 | 1.3% | 313 | 1 | City |
| Cromwell | 7 | 251 | 236 | 1.21% | 136 | 2 | City |
| Kettle River | 8 | 175 | 169 | 0.57% | 453 | 0 | City |
| Wright | 9 | 170 | 166 | 0.59% | 116 | 1 | City |
Cloquet is the largest city in Carlton County, with a population of 12,429.
Wright is the smallest city in Carlton County, with a population of 170.
There are 9 cities in Carlton County, Minnesota.