36 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Russell | 1 | 4,309 | 4,399 | -0.37% | 887 | 5 | City |
| Russell | 2 | 4,309 | 4,389 | -0.37% | 887 | 5 | City |
| Big Creek | 3 | 541 | 539 | -0.37% | 7 | 72 | Township |
| Big Creek | 4 | 541 | 537 | -0.37% | 7 | 72 | Township |
| Gorham | 5 | 380 | 376 | 0.26% | 1,590 | 0 | City |
| Gorham | 6 | 380 | 375 | 0.26% | 1,590 | 0 | City |
| Lucas | 7 | 337 | 333 | 0% | 554 | 1 | City |
| Lucas | 8 | 337 | 334 | 0% | 554 | 1 | City |
| Plymouth | 9 | 221 | 227 | -1.34% | 2 | 99 | Township |
| Plymouth | 10 | 221 | 227 | -1.34% | 2 | 99 | Township |
| Center | 11 | 216 | 215 | -0.46% | 2 | 139 | Township |
| Center | 12 | 216 | 215 | -0.46% | 2 | 139 | Township |
| Luray | 13 | 206 | 211 | -0.96% | 3 | 71 | Township |
| Luray | 14 | 206 | 210 | -0.96% | 3 | 71 | Township |
| Grant | 15 | 179 | 179 | -0.56% | 3 | 52 | Township |
| Grant | 16 | 179 | 178 | -0.56% | 3 | 52 | Township |
| Luray | 17 | 157 | 161 | -0.63% | 473 | 0 | City |
| Luray | 18 | 157 | 160 | -0.63% | 473 | 0 | City |
| Dorrance | 19 | 140 | 144 | -0.71% | 413 | 0 | City |
| Dorrance | 20 | 140 | 144 | -0.71% | 413 | 0 | City |
| Paradise | 21 | 123 | 122 | 0% | 1 | 144 | Township |
| Paradise | 22 | 123 | 122 | 0% | 1 | 144 | Township |
| Bunker Hill | 23 | 108 | 106 | 0% | 78 | 1 | City |
| Bunker Hill | 24 | 108 | 106 | 0% | 78 | 1 | City |
| Russell | 25 | 90 | 88 | 1.12% | 2 | 49 | Township |
| Russell | 26 | 90 | 88 | 1.12% | 2 | 49 | Township |
| Waldo | 27 | 89 | 90 | -1.11% | 1 | 72 | Township |
| Waldo | 28 | 89 | 90 | -1.11% | 1 | 72 | Township |
| Winterset | 29 | 51 | 53 | -1.92% | 1 | 36 | Township |
| Winterset | 30 | 51 | 53 | -1.92% | 1 | 36 | Township |
| Paradise | 31 | 34 | 34 | 0% | 138 | 0 | City |
| Paradise | 32 | 34 | 34 | 0% | 138 | 0 | City |
| Waldo | 33 | 32 | 31 | 0% | 85 | 0 | City |
| Waldo | 34 | 32 | 31 | 0% | 85 | 0 | City |
| Fairfield | 35 | 24 | 24 | 0% | 1 | 40 | Township |
| Fairfield | 36 | 24 | 24 | 0% | 1 | 40 | Township |
Russell is the largest city in Russell County, with a population of 4,309.
Fairfield is the smallest city in Russell County, with a population of 24.
There are 36 cities in Russell County, Kansas.