18 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Howard township | 1 | 713 | 710 | 0.56% | 11 | 63.79 | Township |
| Howard | 2 | 567 | 572 | -0.18% | 803 | 0.71 | City |
| Wildcat township | 3 | 493 | 489 | 0.82% | 9 | 52.30 | Township |
| Longton township | 4 | 357 | 352 | 0.85% | 8 | 44.50 | Township |
| Moline | 5 | 338 | 343 | -0.29% | 1,009 | 0.34 | City |
| Howard township | 6 | 302 | 306 | 0.33% | 7 | 42.86 | Township |
| Longton | 7 | 282 | 284 | 0% | 240 | 1.18 | City |
| Greenfield township | 8 | 259 | 256 | 0.78% | 4 | 65.83 | Township |
| Elk Falls township | 9 | 192 | 189 | 1.05% | 3 | 58.19 | Township |
| Grenola | 10 | 148 | 148 | 0% | 318 | 0.47 | City |
| Paw Paw township | 11 | 125 | 124 | 0.81% | 2 | 53.89 | Township |
| Elk Falls | 12 | 110 | 112 | 0% | 151 | 0.73 | City |
| Union Center township | 13 | 104 | 105 | 0% | 1 | 142.81 | Township |
| Oak Valley township | 14 | 88 | 86 | 1.15% | 2 | 44.57 | Township |
| Painterhood township | 15 | 60 | 58 | 1.69% | 1 | 59.26 | Township |
| Coyville | 16 | 57 | 61 | -1.72% | 212 | 0.27 | City |
| Climax | 17 | 42 | 44 | 0% | 350 | 0.12 | City |
| Lafontaine | 18 | 35 | 48 | 6.06% | 18 | 2 | CDP |
Howard township is the largest city in Elk County, with a population of 713.
Lafontaine is the smallest city in Elk County.
There are 18 cities in Elk County, Kansas.