32 cities
| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Cloquet | 1 | 12,429 | 12,567 | -0.18% | 353 | 35 | City |
| Thomson | 2 | 5,599 | 5,466 | 0.21% | 141 | 40 | Township |
| Moose Lake | 3 | 3,110 | 2,788 | 1.77% | 948 | 3 | City |
| Barnum | 4 | 1,139 | 1,097 | 0.53% | 25 | 45 | Township |
| Perch Lake | 5 | 1,049 | 1,013 | 0.58% | 30 | 35 | Township |
| Moose Lake | 6 | 1,020 | 986 | 0.59% | 32 | 32 | Township |
| Blackhoof | 7 | 1,017 | 986 | 0.39% | 28 | 36 | Township |
| Scanlon | 8 | 1,002 | 990 | 0.2% | 1,168 | 1 | City |
| Carlton | 9 | 962 | 962 | 0% | 253 | 4 | City |
| Silver Brook | 10 | 642 | 615 | 0.78% | 32 | 20 | Township |
| Barnum | 11 | 605 | 619 | -0.33% | 600 | 1 | City |
| Mahtowa | 12 | 573 | 557 | 0.35% | 24 | 24 | Township |
| Eagle | 13 | 548 | 531 | 0.55% | 16 | 35 | Township |
| Kettle River | 14 | 489 | 485 | -0.41% | 16 | 30 | Township |
| Wrenshall | 15 | 466 | 429 | 1.3% | 313 | 1 | City |
| Wrenshall | 16 | 454 | 440 | 0.22% | 12 | 38 | Township |
| Silver | 17 | 453 | 441 | 0.22% | 13 | 35 | Township |
| Skelton | 18 | 414 | 402 | 0.24% | 12 | 35 | Township |
| Atkinson | 19 | 409 | 395 | 0.49% | 24 | 17 | Township |
| Cromwell | 20 | 389 | 388 | 0% | 12 | 33 | Township |
| Kalevala | 21 | 314 | 304 | 0.32% | 9 | 36 | Township |
| Cromwell | 22 | 251 | 236 | 1.21% | 136 | 2 | City |
| Moose Lake | 23 | 244 | 255 | -0.41% | 8 | 31 | Township |
| Holyoke | 24 | 217 | 207 | 0.93% | 6 | 38 | Township |
| Lakeview | 25 | 217 | 204 | 1.4% | 6 | 33 | Township |
| Kettle River | 26 | 175 | 169 | 0.57% | 453 | 0 | City |
| Split Rock | 27 | 170 | 163 | 0.59% | 5 | 37 | Township |
| Wright | 28 | 170 | 166 | 0.59% | 116 | 1 | City |
| Automba | 29 | 150 | 147 | 0% | 4 | 36 | Township |
| Beseman | 30 | 143 | 138 | 0.7% | 4 | 36 | Township |
| Moose Lake | 31 | 143 | 134 | 0.7% | 4 | 38 | Township |
| Wright | 32 | 88 | 93 | -1.12% | 2 | 36 | Township |
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 88.
There are 32 cities in Carlton County, Minnesota.