3 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Collins | 1 | 2,217 | 2,334 | -1.07% | 278 | 8 | City |
| Mount Olive | 2 | 881 | 889 | -0.23% | 284 | 3 | Town |
| Seminary | 3 | 290 | 304 | -1.02% | 189 | 2 | Town |
Collins is the largest city in Covington County, with a population of 2,217.
Seminary is the smallest city in Covington County, with a population of 290.
There are 3 cities in Covington County, Mississippi.