14 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Rock Hill | 1 | 76,084 | 74,654 | 0.38% | 1,716 | 44 | City |
| Lake Wylie | 2 | 15,767 | 14,091 | 3.01% | 1,999 | 8 | CDP |
| Tega Cay | 3 | 14,647 | 12,880 | 2.47% | 3,186 | 5 | City |
| York | 4 | 10,148 | 8,556 | 3.23% | 1,197 | 8 | City |
| Clover | 5 | 7,752 | 6,780 | 2.57% | 1,639 | 5 | Town |
| Baxter Village | 6 | 5,524 | 4,694 | 7.14% | 3,885 | 1 | CDP |
| India Hook | 7 | 4,649 | 3,762 | 1.93% | 1,764 | 3 | CDP |
| Newport | 8 | 4,248 | 4,432 | 0.17% | 528 | 8 | CDP |
| Riverview | 9 | 2,342 | 2,479 | 4.93% | 1,877 | 1 | CDP |
| Catawba | 10 | 1,463 | 1,069 | 0.55% | 147 | 10 | CDP |
| Hickory Grove | 11 | 472 | 455 | 0.64% | 283 | 2 | Town |
| Sharon | 12 | 472 | 462 | 0.43% | 360 | 1 | Town |
| McConnells | 13 | 288 | 280 | 0.35% | 85 | 3 | Town |
| Smyrna | 14 | 55 | 55 | 0% | 78 | 1 | Town |
Rock Hill is the largest city in York County, with a population of 76,084.
Smyrna is the smallest city in York County, with a population of 55.
There are 14 cities in York County, South Carolina.