4 cities
| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Pascagoula | 1 | 21,229 | 21,969 | -0.58% | 1,381 | 15 | City |
| Ocean Springs | 2 | 19,246 | 18,369 | 0.76% | 1,666 | 12 | City |
| Gautier | 3 | 19,074 | 19,017 | 0.05% | 630 | 30 | City |
| Moss Point | 4 | 11,624 | 12,125 | -0.71% | 482 | 24 | City |
Pascagoula is the largest city in Jackson County, with a population of 21,229.
Moss Point is the smallest city in Jackson County, with a population of 11,624.
There are 4 cities in Jackson County, Mississippi.