3 cities
| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Collins | 1 | 2,194 | 2,334 | -1.04% | 276 | 8 | City |
| Mount Olive | 2 | 880 | 889 | -0.11% | 284 | 3 | Town |
| Seminary | 3 | 287 | 304 | -1.03% | 187 | 2 | Town |
Collins is the largest city in Covington County, with a population of 2,194.
Seminary is the smallest city in Covington County, with a population of 287.
There are 3 cities in Covington County, Mississippi.