4 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Bay Springs | 1 | 1,444 | 1,661 | -2.96% | 97 | 15 | City |
| Heidelberg | 2 | 600 | 634 | -1.15% | 117 | 5 | Town |
| Louin | 3 | 264 | 274 | -0.75% | 44 | 6 | Town |
| Montrose | 4 | 99 | 104 | -1% | 36 | 3 | Town |
Bay Springs is the largest city in Jasper County, with a population of 1,444.
Montrose is the smallest city in Jasper County, with a population of 99.
There are 4 cities in Jasper County, Mississippi.