| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density (/mi²) | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Bemidji | 1 | 15,865 | 15,398 | 0.6% | 910 | 17 | City |
| Blackduck | 2 | 807 | 849 | -0.98% | 347 | 2 | City |
| Wilton | 3 | 266 | 269 | -0.37% | 90 | 3 | City |
| Kelliher | 4 | 243 | 255 | -1.22% | 110 | 2 | City |
| Tenstrike | 5 | 177 | 186 | -1.12% | 54 | 3 | City |
| Turtle River | 6 | 81 | 85 | -1.22% | 76 | 1 | City |
| Solway | 7 | 71 | 75 | -1.39% | 69 | 1 | City |
| Funkley | 8 | 12 | 12 | 0% | 16 | 1 | City |
Bemidji is the largest city in Beltrami County, with a population of 15,865.
Funkley is the smallest city in Beltrami County, with a population of 12.
There are 8 cities in Beltrami County, Minnesota.