17 cities
| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Red Lake Falls | 1 | 1,316 | 1,348 | -0.38% | 627 | 2 | City |
| Oklee | 2 | 403 | 415 | -0.49% | 537 | 1 | City |
| Plummer | 3 | 272 | 275 | 0% | 102 | 3 | City |
| Gervais | 4 | 229 | 238 | -0.87% | 6 | 36 | Township |
| Emardville | 5 | 191 | 200 | -1.04% | 4 | 46 | Township |
| Garnes | 6 | 180 | 184 | -0.55% | 4 | 48 | Township |
| Red Lake Falls | 7 | 178 | 182 | -0.56% | 5 | 34 | Township |
| Louisville | 8 | 165 | 169 | -0.6% | 5 | 36 | Township |
| Terrebonne | 9 | 143 | 147 | -0.69% | 4 | 36 | Township |
| Equality | 10 | 135 | 145 | -2.17% | 3 | 48 | Township |
| Lambert | 11 | 133 | 137 | -0.75% | 4 | 36 | Township |
| Brooks | 12 | 116 | 118 | 0% | 101 | 1 | City |
| Poplar River | 13 | 114 | 117 | -0.87% | 3 | 35 | Township |
| Lake Pleasant | 14 | 101 | 104 | -0.98% | 3 | 36 | Township |
| River | 15 | 59 | 62 | -1.67% | 5 | 12 | Township |
| Wylie | 16 | 56 | 59 | -1.75% | 5 | 12 | Township |
| Browns Creek | 17 | 42 | 42 | 0% | 3 | 12 | Township |
Red Lake Falls is the largest city in Red Lake County, with a population of 1,316.
Browns Creek is the smallest city in Red Lake County, with a population of 42.
There are 17 cities in Red Lake County, Minnesota.