82 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Fergus Falls | 1 | 14,276 | 14,121 | 0.22% | 992 | 14.39 | City |
| Perham | 2 | 3,767 | 3,514 | 1.37% | 1,053 | 3.58 | City |
| Pelican Rapids | 3 | 2,600 | 2,592 | 0.08% | 1,007 | 2.58 | City |
| Aurdal | 4 | 1,538 | 1,544 | -0.19% | 48 | 32 | Township |
| New York Mills | 5 | 1,356 | 1,353 | 0.07% | 914 | 1.48 | City |
| Perham | 6 | 1,067 | 981 | 1.14% | 35 | 30.27 | Township |
| Rush Lake | 7 | 1,053 | 1,039 | 0.29% | 39 | 26.68 | Township |
| Parkers Prairie | 8 | 1,033 | 1,020 | 0.29% | 830 | 1.25 | City |
| Battle Lake | 9 | 945 | 859 | 1.83% | 658 | 1.44 | City |
| Dunn | 10 | 923 | 928 | -0.32% | 35 | 26.04 | Township |
| Edna | 11 | 897 | 904 | -0.33% | 34 | 26.14 | Township |
| Dane Prairie | 12 | 890 | 880 | 0% | 29 | 30.90 | Township |
| Henning | 13 | 860 | 857 | 0.12% | 260 | 3.30 | City |
| Elizabeth | 14 | 841 | 840 | -0.12% | 26 | 31.79 | Township |
| Compton | 15 | 824 | 792 | 0.73% | 23 | 35.45 | Township |
| Hobart | 16 | 798 | 803 | -0.25% | 28 | 28.29 | Township |
| Friberg | 17 | 796 | 800 | -0.25% | 25 | 32.22 | Township |
| Lida | 18 | 772 | 774 | -0.13% | 37 | 20.68 | Township |
| Pine Lake | 19 | 767 | 774 | -0.39% | 26 | 28.97 | Township |
| Ottertail | 20 | 755 | 639 | 3.14% | 177 | 4.28 | City |
| Fergus Falls | 21 | 754 | 751 | -0.26% | 28 | 26.55 | Township |
| Newton | 22 | 753 | 757 | -0.26% | 22 | 34.68 | Township |
| Everts | 23 | 749 | 754 | -0.27% | 32 | 23.19 | Township |
| Girard | 24 | 703 | 709 | -0.42% | 27 | 26.11 | Township |
| Dora | 25 | 701 | 705 | -0.28% | 24 | 28.73 | Township |
| Maine | 26 | 663 | 667 | -0.3% | 22 | 29.94 | Township |
| Sverdrup | 27 | 648 | 644 | 0% | 23 | 27.83 | Township |
| Leaf Lake | 28 | 635 | 637 | -0.16% | 19 | 32.70 | Township |
| Corliss | 29 | 621 | 625 | -0.16% | 18 | 35.06 | Township |
| Candor | 30 | 613 | 621 | -0.49% | 20 | 30.39 | Township |
| Otto | 31 | 597 | 599 | -0.17% | 19 | 31.05 | Township |
| Otter Tail | 32 | 594 | 599 | -0.34% | 37 | 16.27 | Township |
| Pelican | 33 | 576 | 575 | -0.52% | 19 | 31.11 | Township |
| Scambler | 34 | 563 | 564 | -0.18% | 17 | 32.19 | Township |
| Dead Lake | 35 | 529 | 535 | -0.38% | 22 | 24.52 | Township |
| Tordenskjold | 36 | 524 | 526 | -0.19% | 17 | 30.65 | Township |
| Clitherall | 37 | 510 | 502 | 0.2% | 18 | 28.78 | Township |
| Gorman | 38 | 501 | 509 | -0.6% | 16 | 32.09 | Township |
| Buse | 39 | 495 | 468 | 1.64% | 18 | 27.50 | Township |
| Amor | 40 | 473 | 476 | -0.21% | 21 | 22.99 | Township |
| Bluffton | 41 | 464 | 460 | 0.22% | 14 | 32.92 | Township |
| Star Lake | 42 | 445 | 447 | -0.22% | 18 | 24.98 | Township |
| Erhards Grove | 43 | 404 | 406 | -0.25% | 12 | 33.35 | Township |
| Deer Creek | 44 | 397 | 399 | -0.25% | 12 | 32.19 | Township |
| Homestead | 45 | 397 | 397 | 0% | 11 | 36.32 | Township |
| Tumuli | 46 | 397 | 405 | -0.75% | 14 | 28.81 | Township |
| Henning | 47 | 388 | 386 | -0.26% | 12 | 32.30 | Township |
| St. Olaf | 48 | 386 | 386 | 0% | 12 | 31.92 | Township |
| Parkers Prairie | 49 | 383 | 392 | -0.78% | 12 | 32.44 | Township |
| Underwood | 50 | 366 | 358 | 0.55% | 624 | 0.59 | City |
| Oak Valley | 51 | 365 | 365 | 0% | 10 | 35.57 | Township |
| Vergas | 52 | 359 | 346 | 0.84% | 229 | 1.57 | City |
| Nidaros | 53 | 353 | 356 | -0.28% | 11 | 30.86 | Township |
| Blowers | 54 | 348 | 357 | -0.85% | 10 | 35.55 | Township |
| Norwegian Grove | 55 | 342 | 342 | 0% | 10 | 33.63 | Township |
| Deer Creek | 56 | 332 | 332 | 0% | 83 | 4.01 | City |
| Leaf Mountain | 57 | 328 | 328 | 0% | 10 | 31.89 | Township |
| Elmo | 58 | 326 | 326 | 0% | 9 | 36.20 | Township |
| Paddock | 59 | 326 | 326 | 0% | 9 | 35.58 | Township |
| Maplewood | 60 | 294 | 294 | 0% | 9 | 31.61 | Township |
| Folden | 61 | 290 | 290 | 0% | 8 | 34.21 | Township |
| Inman | 62 | 285 | 291 | -0.7% | 8 | 36.45 | Township |
| Butler | 63 | 254 | 254 | 0% | 7 | 35.21 | Township |
| Eastern | 64 | 254 | 254 | 0% | 7 | 35.22 | Township |
| Woodside | 65 | 252 | 252 | 0% | 7 | 36.20 | Township |
| Effington | 66 | 238 | 238 | 0% | 7 | 32.81 | Township |
| Dalton | 67 | 216 | 216 | 0% | 911 | 0.24 | City |
| Bluffton | 68 | 212 | 212 | 0% | 78 | 2.73 | City |
| Oscar | 69 | 210 | 210 | 0% | 6 | 34.76 | Township |
| Aastad | 70 | 188 | 188 | 0% | 6 | 33.91 | Township |
| Trondhjem | 71 | 183 | 183 | 0% | 5 | 35.01 | Township |
| Carlisle | 72 | 178 | 178 | 0% | 5 | 34.84 | Township |
| Dent | 73 | 170 | 170 | 0% | 470 | 0.36 | City |
| Elizabeth | 74 | 167 | 167 | 0% | 448 | 0.37 | City |
| Underwood | 75 | 165 | 163 | 0.61% | 5 | 35.06 | Township |
| Orwell | 76 | 147 | 147 | -0.68% | 4 | 33.42 | Township |
| Erhard | 77 | 131 | 131 | 0% | 237 | 0.55 | City |
| Western | 78 | 120 | 120 | 0% | 3 | 34.41 | Township |
| Richville | 79 | 78 | 77 | 0% | 79 | 0.99 | City |
| Clitherall | 80 | 71 | 63 | 2.9% | 372 | 0.19 | City |
| Vining | 81 | 59 | 59 | 0% | 51 | 1.15 | City |
| Doran | 82 | 33 | 35 | 0% | 159 | 0.21 | City |
Fergus Falls is the largest city in Otter Tail County, with a population of 14,276.
Doran is the smallest city in Otter Tail County, with a population of 33.
There are 82 cities in Otter Tail County, Minnesota.