17 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Crossett | 1 | 4,432 | 4,829 | -1.64% | 619 | 7 | City |
| Crossett | 2 | 4,432 | 4,799 | -1.64% | 619 | 7 | City |
| North Crossett | 3 | 2,659 | 2,704 | -1.15% | 255 | 10 | CDP |
| Hamburg | 4 | 2,349 | 2,534 | -1.47% | 684 | 3 | City |
| Hamburg | 5 | 2,349 | 2,521 | -1.47% | 684 | 3 | City |
| West Crossett | 6 | 1,181 | 1,434 | -0.42% | 99 | 12 | CDP |
| Lacey | 7 | 701 | 585 | 7.19% | 442 | 2 | CDP |
| Wilmot | 8 | 385 | 419 | -1.79% | 218 | 2 | City |
| Wilmot | 9 | 385 | 417 | -1.79% | 218 | 2 | City |
| Portland | 10 | 299 | 324 | -1.64% | 279 | 1 | City |
| Portland | 11 | 299 | 322 | -1.64% | 279 | 1 | City |
| Montrose | 12 | 225 | 244 | -1.75% | 594 | 0 | City |
| Montrose | 13 | 225 | 243 | -1.75% | 594 | 0 | City |
| Parkdale | 14 | 162 | 175 | -1.82% | 159 | 1 | City |
| Parkdale | 15 | 162 | 174 | -1.82% | 159 | 1 | City |
| Fountain Hill | 16 | 101 | 107 | -0.98% | 178 | 1 | Town |
| Fountain Hill | 17 | 101 | 106 | -0.98% | 178 | 1 | Town |
Crossett is the largest city in Ashley County, with a population of 4,432.
Fountain Hill is the smallest city in Ashley County, with a population of 101.
There are 17 cities in Ashley County, Arkansas.