9 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Newport | 1 | 8,057 | 8,016 | 0.1% | 595 | 14 | City |
| Tuckerman | 2 | 1,654 | 1,703 | -0.6% | 618 | 3 | City |
| Diaz | 3 | 1,208 | 1,223 | -0.25% | 204 | 6 | City |
| Swifton | 4 | 705 | 722 | -0.56% | 1,303 | 1 | City |
| Grubbs | 5 | 301 | 304 | -0.33% | 532 | 1 | City |
| Jacksonport | 6 | 154 | 156 | -0.65% | 410 | 0 | Town |
| Beedeville | 7 | 81 | 84 | -1.22% | 71 | 1 | Town |
| Tupelo | 8 | 69 | 71 | -1.43% | 248 | 0 | Town |
| Amagon | 9 | 66 | 66 | 0% | 595 | 0 | Town |
Newport is the largest city in Jackson County, with a population of 8,057.
Amagon is the smallest city in Jackson County, with a population of 66.
There are 9 cities in Jackson County, Arkansas.