| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density (/mi²) | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Pascagoula | 1 | 21,288 | 21,978 | -0.57% | 1,384 | 15 | City |
| Ocean Springs | 2 | 19,140 | 18,373 | 0.77% | 1,657 | 12 | City |
| Gautier | 3 | 19,068 | 19,000 | -0.01% | 630 | 30 | City |
| Moss Point | 4 | 11,662 | 12,122 | -0.69% | 484 | 24 | City |
Pascagoula is the largest city in Jackson County, with a population of 21,288.
Moss Point is the smallest city in Jackson County, with a population of 11,662.
There are 4 cities in Jackson County, Mississippi.