63 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Sylvan township | 1 | 3,063 | 2,911 | 0.46% | 99 | 30.80 | Township |
| Pike Bay township | 2 | 1,803 | 1,709 | 0.45% | 81 | 22.23 | Township |
| Shingobee township | 3 | 1,746 | 1,663 | 0.34% | 34 | 52.02 | Township |
| Pine River township | 4 | 1,244 | 1,184 | 0.32% | 36 | 34.90 | Township |
| East Gull Lake | 5 | 1,210 | 985 | 3.86% | 154 | 7.88 | City |
| Lake Shore | 6 | 1,155 | 1,069 | 1.49% | 91 | 12.68 | City |
| Walker | 7 | 986 | 973 | 0.31% | 351 | 2.81 | City |
| Pine River | 8 | 940 | 915 | 0.53% | 783 | 1.20 | City |
| Fairview township | 9 | 940 | 893 | 0.43% | 26 | 35.63 | Township |
| May township | 10 | 889 | 841 | 0.57% | 15 | 59.86 | Township |
| Powers township | 11 | 859 | 817 | 0.47% | 30 | 28.81 | Township |
| Turtle Lake township | 12 | 850 | 807 | 0.47% | 17 | 48.71 | Township |
| Woodrow township | 13 | 754 | 716 | 0.53% | 30 | 25.44 | Township |
| Wilson township | 14 | 704 | 666 | 0.72% | 40 | 17.73 | Township |
| Cass Lake | 15 | 688 | 682 | 0.15% | 631 | 1.09 | City |
| Kego township | 16 | 665 | 631 | 0.45% | 21 | 31.27 | Township |
| Loon Lake township | 17 | 661 | 627 | 0.61% | 38 | 17.41 | Township |
| Ponto Lake township | 18 | 620 | 589 | 0.49% | 21 | 29.65 | Township |
| Wilkinson township | 19 | 620 | 589 | 0.49% | 20 | 30.69 | Township |
| Birch Lake township | 20 | 602 | 571 | 0.5% | 21 | 28.62 | Township |
| Walden township | 21 | 575 | 539 | 0.88% | 16 | 36.13 | Township |
| Barclay township | 22 | 554 | 529 | 0.36% | 40 | 13.87 | Township |
| Crooked Lake township | 23 | 532 | 507 | 0.38% | 18 | 30.17 | Township |
| Pillager | 24 | 526 | 513 | 0.57% | 620 | 0.85 | City |
| Leech Lake township | 25 | 517 | 487 | 0.58% | 22 | 23.62 | Township |
| Wabedo township | 26 | 450 | 428 | 0.45% | 18 | 24.77 | Township |
| Maple township | 27 | 438 | 412 | 0.23% | 12 | 36.34 | Township |
| Remer | 28 | 404 | 389 | 0.75% | 304 | 1.33 | City |
| Hiram township | 29 | 372 | 353 | 0.54% | 14 | 27.18 | Township |
| Hackensack | 30 | 303 | 295 | 0.66% | 297 | 1.02 | City |
| Home Brook township | 31 | 278 | 267 | 0% | 8 | 36.05 | Township |
| Backus | 32 | 273 | 268 | 0.37% | 440 | 0.62 | City |
| Gould township | 33 | 242 | 230 | 0.41% | 7 | 33.55 | Township |
| Thunder Lake township | 34 | 242 | 231 | 0.41% | 7 | 32.37 | Township |
| Meadow Brook township | 35 | 239 | 227 | 0.42% | 6 | 38.56 | Township |
| Boy Lake township | 36 | 238 | 226 | 0.42% | 9 | 27.67 | Township |
| Slater township | 37 | 208 | 197 | 0.48% | 6 | 33.85 | Township |
| Remer township | 38 | 199 | 191 | 0% | 7 | 29.32 | Township |
| Pine Lake township | 39 | 191 | 184 | 0% | 7 | 28.34 | Township |
| Poplar township | 40 | 189 | 179 | 0.53% | 5 | 35.65 | Township |
| Trelipe township | 41 | 189 | 180 | 0.53% | 3 | 66.89 | Township |
| Torrey township | 42 | 178 | 169 | 0.56% | 6 | 31.73 | Township |
| Inguadona township | 43 | 169 | 163 | 0% | 5 | 34.61 | Township |
| Bungo township | 44 | 167 | 158 | 0.6% | 5 | 34.77 | Township |
| Longville | 45 | 158 | 157 | 0% | 186 | 0.85 | City |
| Bena | 46 | 155 | 144 | 1.31% | 307 | 0.51 | City |
| Bull Moose township | 47 | 145 | 141 | -0.68% | 4 | 34.48 | Township |
| McKinley township | 48 | 145 | 139 | 0% | 4 | 36.08 | Township |
| Chickamaw Beach | 49 | 132 | 131 | 0% | 59 | 2.25 | City |
| Deerfield township | 50 | 125 | 117 | 0.81% | 4 | 32.77 | Township |
| Federal Dam | 51 | 124 | 123 | 0% | 56 | 2.21 | City |
| Salem township | 52 | 119 | 114 | 0% | 3 | 35.11 | Township |
| Blind Lake township | 53 | 103 | 96 | 0.98% | 3 | 34.14 | Township |
| Whipholt | 54 | 93 | 85 | 8.14% | 29 | 3.25 | CDP |
| Zemple | 55 | 84 | 76 | 2.44% | 129 | 0.65 | City |
| Ansel township | 56 | 82 | 76 | 1.23% | 2 | 35.40 | Township |
| Beulah township | 57 | 73 | 70 | 0% | 2 | 34.68 | Township |
| Inger | 58 | 66 | 148 | -13.16% | 35 | 1.88 | CDP |
| Otter Tail Peninsula township | 59 | 66 | 63 | 0% | 1 | 64.63 | Township |
| Ball Club | 60 | 63 | 153 | -23.17% | 23 | 2.76 | CDP |
| Boy River township | 61 | 62 | 57 | 1.64% | 2 | 35.74 | Township |
| Smoky Hollow township | 62 | 60 | 55 | 1.69% | 2 | 34.91 | Township |
| Boy River | 63 | 27 | 26 | 0% | 72 | 0.37 | City |
Sylvan township is the largest city in Cass County, with a population of 3,063.
Boy River is the smallest city in Cass County.
There are 63 cities in Cass County, Minnesota.