| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density (/mi²) | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Laurens | 1 | 9,326 | 9,342 | -0.01% | 913 | 10 | City |
| Clinton | 2 | 7,972 | 7,628 | 0.68% | 763 | 10 | City |
| Gray Court | 3 | 819 | 774 | 0.74% | 432 | 2 | Town |
| Cross Hill | 4 | 445 | 407 | 1.14% | 140 | 3 | Town |
| Waterloo | 5 | 160 | 149 | 0.63% | 90 | 2 | Town |
Laurens is the largest city in Laurens County, with a population of 9,326.
Waterloo is the smallest city in Laurens County, with a population of 160.
There are 5 cities in Laurens County, South Carolina.