| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density (/mi²) | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Cherokee | 1 | 5,108 | 5,189 | -0.27% | 748 | 7 | City |
| Marcus | 2 | 1,034 | 1,075 | -0.39% | 676 | 2 | City |
| Aurelia | 3 | 931 | 968 | -0.43% | 918 | 1 | City |
| Quimby | 4 | 234 | 246 | -0.85% | 575 | 0 | City |
| Cleghorn | 5 | 223 | 236 | -0.89% | 978 | 0 | City |
| Washta | 6 | 198 | 208 | -0.5% | 196 | 1 | City |
| Meriden | 7 | 167 | 172 | -0.6% | 1,478 | 0 | City |
| Larrabee | 8 | 112 | 117 | -0.88% | 862 | 0 | City |
Cherokee is the largest city in Cherokee County, with a population of 5,108.
Larrabee is the smallest city in Cherokee County, with a population of 112.
There are 8 cities in Cherokee County, Iowa.