There are 13 cities in Union County, South Carolina.
Note: As defined by the US Census Bureau, a city's official boundaries often extend miles beyond the city itself and may even cross county lines. As such, several thousand US cities officially exist in two or more counties (and therefore appear on multiple counties' lists of cities.)
City | Rank | State | 2024 Population | 2020 Census | Annual Change | Density (mi²) | Area (mi²) |
|---|---|---|---|---|---|---|---|
| Union | 1 | South Carolina | 7,741 | 8,137 | -1.26% | 968 | 7.99 |
| Pacolet | 2 | South Carolina | 2,516 | 2,288 | 2.32% | 435 | 5.78 |
| Monarch Mill | 3 | South Carolina | 2,242 | 1,264 | 11.88% | 400 | 5.61 |
| Whitmire | 4 | South Carolina | 1,415 | 1,393 | 0.43% | 1,132 | 1.25 |
| Buffalo | 5 | South Carolina | 1,298 | 1,020 | 5.7% | 323 | 4.02 |
| Jonesville | 6 | South Carolina | 810 | 850 | -1.22% | 798 | 1.01 |
| Enoree | 7 | South Carolina | 387 | 560 | -6.52% | 250 | 1.55 |
| Lockhart | 8 | South Carolina | 365 | 381 | -1.08% | 1,197 | 0.30 |
| Carlisle | 9 | South Carolina | 311 | 319 | -0.64% | 220 | 1.42 |
| Pauline | 10 | South Carolina | 254 | 204 | 5.39% | 178 | 1.43 |
| Central Pacolet | 11 | South Carolina | 233 | 209 | 2.64% | 987 | 0.24 |
| Glenn Springs | 12 | South Carolina | 143 | 231 | -13.33% | 65 | 2.22 |
| Cross Anchor | 13 | South Carolina | 0 | 70 | 0% | 0 | 0.77 |
Note: City markers shown outside the county boundary mean that a part of the city extends into this county, but is primarily located in an adjacent county.
Union is the largest city in Union County.
Cross Anchor is the smallest city in Union County.
There are 13 cities in Union County, South Carolina.