| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density (/mi²) | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Stuttgart | 1 | 7,381 | 8,238 | -1.91% | 996 | 7 | City |
| DeWitt | 2 | 2,742 | 3,036 | -1.76% | 916 | 3 | City |
| Gillett | 3 | 630 | 568 | 1.78% | 633 | 1 | City |
| Almyra | 4 | 233 | 256 | -1.69% | 601 | 0 | Town |
| St. Charles | 5 | 187 | 205 | -2.09% | 211 | 1 | Town |
Stuttgart is the largest city in Arkansas County, with a population of 7,381.
St. Charles is the smallest city in Arkansas County, with a population of 187.
There are 5 cities in Arkansas County, Arkansas.