38 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Willmar | 1 | 21,537 | 21,032 | 0.47% | 1,513 | 14.23 | City |
| New London township | 2 | 2,924 | 2,947 | -0.07% | 118 | 24.80 | Township |
| Dovre township | 3 | 2,148 | 2,169 | -0.09% | 79 | 27.16 | Township |
| Green Lake township | 4 | 1,617 | 1,634 | -0.12% | 53 | 30.39 | Township |
| New London | 5 | 1,304 | 1,253 | 0.77% | 1,009 | 1.29 | City |
| Spicer | 6 | 1,061 | 1,110 | -0.93% | 886 | 1.20 | City |
| Atwater | 7 | 1,060 | 1,122 | -1.12% | 1,029 | 1.03 | City |
| Lake Andrew township | 8 | 970 | 978 | 0% | 33 | 29.34 | Township |
| Irving township | 9 | 957 | 968 | -0.1% | 29 | 32.98 | Township |
| Raymond | 10 | 788 | 788 | 0% | 889 | 0.89 | City |
| Roseville township | 11 | 629 | 638 | -0.32% | 18 | 34.95 | Township |
| Colfax township | 12 | 603 | 612 | -0.33% | 18 | 33.27 | Township |
| Kandiyohi township | 13 | 563 | 570 | -0.18% | 17 | 33.39 | Township |
| Burbank township | 14 | 561 | 567 | -0.18% | 17 | 33.01 | Township |
| Kandiyohi | 15 | 548 | 572 | -0.9% | 1,402 | 0.39 | City |
| Harrison township | 16 | 547 | 551 | 0% | 17 | 31.77 | Township |
| Whitefield township | 17 | 509 | 513 | 0% | 14 | 35.38 | Township |
| Prinsburg | 18 | 497 | 514 | -0.6% | 492 | 1.01 | City |
| Willmar township | 19 | 472 | 475 | 0% | 22 | 21.66 | Township |
| Pennock | 20 | 469 | 483 | -0.64% | 459 | 1.02 | City |
| Gennessee township | 21 | 412 | 417 | -0.24% | 13 | 32.33 | Township |
| St. Johns township | 22 | 407 | 417 | -0.49% | 12 | 33.52 | Township |
| Mamre township | 23 | 390 | 393 | 0% | 11 | 33.98 | Township |
| Arctander township | 24 | 364 | 366 | 0% | 11 | 34.54 | Township |
| Roseland township | 25 | 346 | 350 | 0% | 10 | 35.24 | Township |
| Fahlun township | 26 | 332 | 334 | 0% | 11 | 29.48 | Township |
| Norway Lake township | 27 | 277 | 280 | 0% | 9 | 32.50 | Township |
| Raymond township | 28 | 248 | 236 | 1.22% | 7 | 35.90 | Township |
| Edwards township | 29 | 242 | 240 | 0.41% | 7 | 35.09 | Township |
| Lake Lillian | 30 | 234 | 249 | -1.27% | 517 | 0.45 | City |
| Lake Elizabeth township | 31 | 186 | 188 | 0% | 5 | 34.51 | Township |
| Lake Lillian township | 32 | 182 | 181 | 0.55% | 5 | 35.64 | Township |
| East Lake Lillian township | 33 | 168 | 172 | -0.59% | 5 | 33.58 | Township |
| Blomkest | 34 | 137 | 144 | -0.72% | 135 | 1.02 | City |
| Sunburg | 35 | 91 | 96 | -1.09% | 192 | 0.47 | City |
| Lake Henry | 36 | 77 | 74 | 1.32% | 389 | 0.20 | City |
| Spring Hill | 37 | 70 | 67 | 1.45% | 96 | 0.73 | City |
| Regal | 38 | 39 | 41 | 0% | 76 | 0.51 | City |
Willmar is the largest city in Kandiyohi County, with a population of 21,537.
Regal is the smallest city in Kandiyohi County.
There are 38 cities in Kandiyohi County, Minnesota.