17 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Red Lake Falls | 1 | 1,328 | 1,347 | -0.3% | 632 | 2.10 | City |
| Oklee | 2 | 408 | 415 | -0.24% | 544 | 0.75 | City |
| Plummer | 3 | 271 | 275 | -0.37% | 101 | 2.67 | City |
| Gervais township | 4 | 234 | 233 | 0.86% | 7 | 35.52 | Township |
| Emardville township | 5 | 209 | 206 | 0.97% | 5 | 45.89 | Township |
| Red Lake Falls township | 6 | 187 | 186 | 0.54% | 6 | 33.92 | Township |
| Garnes township | 7 | 178 | 177 | 0.56% | 4 | 48.31 | Township |
| Louisville township | 8 | 170 | 169 | 0.59% | 5 | 36.08 | Township |
| Terrebonne township | 9 | 148 | 147 | 0.68% | 4 | 35.94 | Township |
| Equality township | 10 | 143 | 142 | 0.7% | 3 | 47.65 | Township |
| Lambert township | 11 | 138 | 137 | 0.73% | 4 | 35.62 | Township |
| Poplar River township | 12 | 121 | 117 | 1.68% | 3 | 34.97 | Township |
| Brooks | 13 | 117 | 117 | 0% | 102 | 1.15 | City |
| Lake Pleasant township | 14 | 107 | 105 | 0.94% | 3 | 35.97 | Township |
| River township | 15 | 64 | 62 | 1.59% | 5 | 11.75 | Township |
| Wylie township | 16 | 61 | 59 | 1.67% | 5 | 12.08 | Township |
| Browns Creek township | 17 | 46 | 44 | 2.22% | 4 | 12.04 | Township |
Red Lake Falls is the largest city in Red Lake County, with a population of 1,328.
Browns Creek township is the smallest city in Red Lake County.
There are 17 cities in Red Lake County, Minnesota.