39 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Alexandria | 1 | 15,318 | 14,380 | 1.24% | 891 | 17.19 | City |
| La Grand township | 2 | 4,409 | 4,276 | 0.82% | 177 | 24.90 | Township |
| Alexandria township | 3 | 3,157 | 2,968 | 1.54% | 164 | 19.20 | Township |
| Carlos township | 4 | 2,290 | 2,226 | 0.75% | 76 | 30.03 | Township |
| Osakis | 5 | 1,742 | 1,767 | -0.29% | 907 | 1.92 | City |
| Ida township | 6 | 1,455 | 1,409 | 0.83% | 52 | 27.98 | Township |
| Lake Mary township | 7 | 1,201 | 1,163 | 0.84% | 43 | 28.07 | Township |
| Hudson township | 8 | 983 | 951 | 0.92% | 30 | 33.15 | Township |
| Miltona township | 9 | 954 | 922 | 0.95% | 35 | 27.07 | Township |
| Holmes City township | 10 | 825 | 800 | 0.86% | 27 | 30.77 | Township |
| Moe township | 11 | 794 | 768 | 0.89% | 26 | 30.44 | Township |
| Brandon township | 12 | 791 | 768 | 0.76% | 26 | 30.50 | Township |
| Osakis township | 13 | 706 | 687 | 0.71% | 22 | 31.39 | Township |
| Evansville | 14 | 582 | 601 | -0.68% | 742 | 0.78 | City |
| Garfield township | 15 | 502 | 516 | -0.79% | 15 | 32.92 | Township |
| Brandon | 16 | 494 | 504 | -0.4% | 1,023 | 0.48 | City |
| Carlos | 17 | 481 | 496 | -0.62% | 1,076 | 0.45 | City |
| Spruce Hill township | 18 | 478 | 460 | 1.06% | 13 | 35.90 | Township |
| Miltona | 19 | 443 | 430 | 0.68% | 660 | 0.67 | City |
| Millerville township | 20 | 429 | 418 | 0.7% | 13 | 31.98 | Township |
| Leaf Valley township | 21 | 413 | 402 | 0.73% | 12 | 33.46 | Township |
| Lund township | 22 | 361 | 349 | 0.84% | 13 | 28.33 | Township |
| Orange township | 23 | 358 | 349 | 0.56% | 10 | 34.74 | Township |
| Belle River township | 24 | 348 | 340 | 0.58% | 10 | 35.80 | Township |
| Long Beach | 25 | 336 | 343 | -0.3% | 236 | 1.43 | City |
| Garfield | 26 | 335 | 347 | -0.59% | 416 | 0.81 | City |
| Urness township | 27 | 283 | 273 | 1.07% | 9 | 31.92 | Township |
| Kensington | 28 | 271 | 265 | 0.37% | 757 | 0.36 | City |
| Solem township | 29 | 240 | 233 | 0.84% | 7 | 34.20 | Township |
| Nelson township | 30 | 234 | 238 | 0% | 7 | 35.63 | Township |
| Evansville township | 31 | 230 | 224 | 0.44% | 7 | 32.65 | Township |
| Nelson | 32 | 185 | 180 | 0.54% | 280 | 0.66 | City |
| Forada | 33 | 167 | 172 | -0.6% | 311 | 0.54 | City |
| Garfield township | 34 | 113 | 117 | -0.88% | 3 | 37.21 | Township |
| Millerville | 35 | 98 | 100 | 0% | 114 | 0.86 | City |
| Farwell | 36 | 55 | 57 | 0% | 219 | 0.25 | City |
| Urbank | 37 | 51 | 51 | 0% | 77 | 0.66 | City |
| Sedan | 38 | 45 | 44 | 0% | 89 | 0.51 | City |
| Westport | 39 | 41 | 41 | 0% | 155 | 0.26 | City |
Alexandria is the largest city in Douglas County, with a population of 15,318.
Westport is the smallest city in Douglas County.
There are 39 cities in Douglas County, Minnesota.