Note: As defined by the US Census Bureau, a city's official boundaries often extend miles beyond the city itself and may even cross county lines. As such, several thousand US cities officially exist in two or more counties (and therefore appear on multiple counties' lists of cities.)
City | Rank | 2024 Pop. | 2020 Pop. | Change | Density (/mi²) | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| East Gull Lake | 1 | 1,165 | 985 | 4.02% | 148 | 7.9 | City |
| Lake Shore | 2 | 1,138 | 1,069 | 1.52% | 90 | 12.7 | City |
| Walker | 3 | 983 | 973 | 0.2% | 350 | 2.8 | City |
| Pine River | 4 | 935 | 915 | 0.54% | 779 | 1.2 | City |
| Cass Lake | 5 | 687 | 682 | 0.15% | 630 | 1.1 | City |
| Pillager | 6 | 523 | 513 | 0.38% | 616 | 0.8 | City |
| Remer | 7 | 401 | 389 | 0.75% | 302 | 1.3 | City |
| Hackensack | 8 | 301 | 295 | 0.33% | 295 | 1.0 | City |
| Backus | 9 | 272 | 268 | 0.37% | 439 | 0.6 | City |
| Longville | 10 | 158 | 157 | 0% | 186 | 0.9 | City |
| Bena | 11 | 153 | 144 | 1.32% | 303 | 0.5 | City |
| Chickamaw Beach | 12 | 132 | 131 | 0% | 59 | 2.3 | City |
| Federal Dam | 13 | 124 | 123 | 0% | 56 | 2.2 | City |
| Whipholt | 14 | 86 | 85 | 7.5% | 26 | 3.3 | CDP |
| Ball Club | 15 | 82 | 153 | -18% | 30 | 2.8 | CDP |
| Zemple | 16 | 82 | 76 | 1.23% | 126 | 0.7 | City |
| Inger | 17 | 76 | 148 | -10.59% | 40 | 1.9 | CDP |
| Boy River | 18 | 27 | 26 | 0% | 72 | 0.4 | City |
Note: City markers shown outside the county boundary mean that a part of the city extends into this county, but is primarily located in an adjacent county.
East Gull Lake is the largest city in Cass County.
Boy River is the smallest city in Cass County.
There are 18 cities in Cass County, Minnesota.