7 cities
| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Arkadelphia | 1 | 9,661 | 10,359 | -1.19% | 1,250 | 8 | City |
| Gurdon | 2 | 1,816 | 1,840 | -0.22% | 749 | 2 | City |
| Amity | 3 | 678 | 675 | 0.15% | 211 | 3 | City |
| Caddo Valley | 4 | 589 | 592 | 0% | 190 | 3 | Town |
| Okolona | 5 | 101 | 97 | 1% | 127 | 1 | Town |
| Gum Springs | 6 | 91 | 91 | 0% | 233 | 0 | Town |
| Whelen Springs | 7 | 43 | 45 | 0% | 184 | 0 | Town |
Arkadelphia is the largest city in Clark County, with a population of 9,661.
Whelen Springs is the smallest city in Clark County, with a population of 43.
There are 7 cities in Clark County, Arkansas.