9 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Appleton | 1 | 843 | 879 | 0.72% | 3 | 243 | Township |
| Center | 2 | 836 | 881 | 0.6% | 4 | 204 | Township |
| Ashland | 3 | 722 | 779 | -1.63% | 427 | 2 | City |
| Minneola | 4 | 691 | 733 | -1.29% | 1,505 | 0 | City |
| Ashland | 5 | 151 | 147 | 1.34% | 4 | 34 | Township |
| Englewood | 6 | 98 | 102 | 1.03% | 0.00 | 207 | Township |
| Englewood | 7 | 51 | 54 | -1.92% | 45 | 1 | City |
| Sitka | 8 | 48 | 51 | 0% | 0.00 | 171 | Township |
| Lexington | 9 | 45 | 48 | 0% | 1 | 90 | Township |
Appleton is the largest city in Clark County, with a population of 843.
Lexington is the smallest city in Clark County, with a population of 45.
There are 9 cities in Clark County, Kansas.