35 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 |
| Thomson | 3 | 5,573 | 5,466 | -0.05% | 140 | 39.74 | Township |
| Moose Lake | 4 | 3,150 | 2,785 | 2.37% | 960 | 3.28 | City |
| Esko | 5 | 2,248 | 2,222 | 1.17% | 462 | 4.86 | CDP |
| Barnum | 6 | 1,142 | 1,099 | 0.71% | 25 | 45.01 | Township |
| Perch Lake | 7 | 1,047 | 1,012 | 0.67% | 30 | 34.67 | Township |
| Blackhoof | 8 | 1,020 | 982 | 0.79% | 28 | 36.03 | Township |
| Moose Lake | 9 | 1,020 | 987 | 0.59% | 32 | 32.22 | Township |
| Scanlon | 10 | 1,014 | 988 | 0.5% | 1,182 | 0.86 | City |
| Carlton | 11 | 958 | 962 | -0.1% | 252 | 3.81 | City |
| Silver Brook | 12 | 634 | 614 | 0.48% | 32 | 20.02 | Township |
| Barnum | 13 | 601 | 610 | -0.33% | 596 | 1.01 | City |
| Mahtowa | 14 | 574 | 558 | 0.53% | 24 | 23.67 | Township |
| Eagle | 15 | 551 | 532 | 0.73% | 16 | 34.60 | Township |
| Kettle River | 16 | 499 | 486 | 0.2% | 17 | 30.06 | Township |
| Wrenshall | 17 | 462 | 441 | 0.87% | 12 | 37.90 | Township |
| Silver | 18 | 457 | 441 | 0.66% | 13 | 34.99 | Township |
| Wrenshall | 19 | 453 | 422 | 1.34% | 304 | 1.49 | City |
| Skelton | 20 | 427 | 411 | 0.71% | 12 | 35.04 | Township |
| Atkinson | 21 | 410 | 395 | 0.74% | 24 | 17.39 | Township |
| Cromwell | 22 | 389 | 387 | 0.26% | 12 | 33.23 | Township |
| Mahtowa | 23 | 365 | 373 | 0% | 34 | 10.59 | CDP |
| Kalevala | 24 | 318 | 304 | 0.95% | 9 | 35.77 | Township |
| Cromwell | 25 | 251 | 238 | 1.21% | 136 | 1.84 | City |
| Moose Lake | 26 | 246 | 254 | -0.4% | 8 | 31.04 | Township |
| Holyoke | 27 | 217 | 207 | 0.93% | 6 | 37.94 | Township |
| Lakeview | 28 | 215 | 208 | 0.47% | 6 | 33.49 | Township |
| Kettle River | 29 | 177 | 169 | 1.14% | 459 | 0.39 | City |
| Wright | 30 | 171 | 165 | 0.59% | 117 | 1.46 | City |
| Split Rock | 31 | 169 | 163 | 0.6% | 5 | 36.60 | Township |
| Automba | 32 | 157 | 149 | 1.29% | 4 | 36.38 | Township |
| Moose Lake | 33 | 143 | 134 | 0.7% | 4 | 37.72 | Township |
| Beseman | 34 | 137 | 135 | 0% | 4 | 35.94 | Township |
| Wright | 35 | 89 | 91 | 0% | 2 | 36.01 | Township |
Cloquet is the largest city in Carlton County, with a population of 12,569.
Wright is the smallest city in Carlton County, with a population of 89.
There are 35 cities in Carlton County, Minnesota.