39 cities
| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Alexandria | 1 | 15,165 | 14,411 | 0.84% | 882 | 17 | City |
| La Grand | 2 | 4,333 | 4,248 | 0.25% | 174 | 25 | Township |
| Alexandria | 3 | 3,140 | 2,969 | 0.9% | 164 | 19 | Township |
| Carlos | 4 | 2,271 | 2,227 | 0.26% | 76 | 30 | Township |
| Osakis | 5 | 1,735 | 1,771 | -0.34% | 903 | 2 | City |
| Ida | 6 | 1,443 | 1,412 | 0.28% | 52 | 28 | Township |
| Lake Mary | 7 | 1,182 | 1,162 | 0.17% | 42 | 28 | Township |
| Hudson | 8 | 969 | 947 | 0.31% | 29 | 33 | Township |
| Miltona | 9 | 936 | 921 | 0.11% | 35 | 27 | Township |
| Holmes City | 10 | 817 | 799 | 0.37% | 27 | 31 | Township |
| Moe | 11 | 784 | 768 | 0.26% | 26 | 30 | Township |
| Brandon | 12 | 780 | 767 | 0.13% | 26 | 30 | Township |
| Osakis | 13 | 707 | 692 | 0.28% | 23 | 31 | Township |
| Evansville | 14 | 580 | 601 | -0.51% | 740 | 1 | City |
| Garfield | 15 | 517 | 516 | 0.58% | 16 | 33 | Township |
| Brandon | 16 | 497 | 505 | -0.2% | 1,029 | 0 | City |
| Carlos | 17 | 479 | 499 | -0.62% | 1,072 | 0 | City |
| Spruce Hill | 18 | 469 | 462 | 0% | 13 | 36 | Township |
| Miltona | 19 | 448 | 429 | 0.67% | 668 | 1 | City |
| Millerville | 20 | 420 | 413 | 0.24% | 13 | 32 | Township |
| Leaf Valley | 21 | 413 | 405 | 0.24% | 12 | 33 | Township |
| Orange | 22 | 352 | 345 | 0.28% | 10 | 35 | Township |
| Lund | 23 | 351 | 346 | 0% | 12 | 28 | Township |
| Belle River | 24 | 346 | 340 | 0% | 10 | 36 | Township |
| Long Beach | 25 | 337 | 342 | -0.3% | 236 | 1 | City |
| Garfield | 26 | 332 | 346 | -0.6% | 412 | 1 | City |
| Urness | 27 | 278 | 271 | 0.36% | 9 | 32 | Township |
| Kensington | 28 | 272 | 266 | 0.37% | 760 | 0 | City |
| Solem | 29 | 237 | 234 | 0% | 7 | 34 | Township |
| Nelson | 30 | 236 | 238 | 0% | 7 | 36 | Township |
| Evansville | 31 | 230 | 223 | 0.44% | 7 | 33 | Township |
| Forada | 32 | 194 | 173 | 2.11% | 361 | 1 | City |
| Nelson | 33 | 184 | 181 | 0.55% | 278 | 1 | City |
| Garfield | 34 | 112 | 116 | -0.88% | 3 | 37 | Township |
| Millerville | 35 | 98 | 101 | 0% | 114 | 1 | City |
| Farwell | 36 | 56 | 56 | 0% | 223 | 0 | City |
| Urbank | 37 | 48 | 48 | 0% | 73 | 1 | City |
| Westport | 38 | 47 | 44 | 2.17% | 178 | 0 | City |
| Sedan | 39 | 46 | 45 | 0% | 91 | 1 | City |
Alexandria is the largest city in Douglas County, with a population of 15,165.
Sedan is the smallest city in Douglas County, with a population of 46.
There are 39 cities in Douglas County, Minnesota.