8 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Arkadelphia | 1 | 10,187 | 10,357 | -0.33% | 1,318 | 7.73 | City |
| Gurdon | 2 | 1,832 | 1,842 | -0.11% | 755 | 2.42 | City |
| Amity | 3 | 677 | 674 | 0.15% | 211 | 3.21 | City |
| Caddo Valley | 4 | 588 | 592 | -0.17% | 190 | 3.10 | Town |
| Okolona | 5 | 98 | 97 | 0% | 124 | 0.79 | Town |
| Gum Springs | 6 | 91 | 91 | 0% | 233 | 0.39 | Town |
| Alpine | 7 | 89 | 129 | 7.23% | 62 | 1.44 | CDP |
| Whelen Springs | 8 | 44 | 44 | 0% | 188 | 0.23 | Town |
Arkadelphia is the largest city in Clark County, with a population of 10,187.
Whelen Springs is the smallest city in Clark County.
There are 8 cities in Clark County, Arkansas.