14 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Rock Hill | 1 | 76,289 | 74,701 | 0.42% | 1,721 | 44.33 | City |
| Lake Wylie | 2 | 15,767 | 14,091 | 3.01% | 1,999 | 7.89 | CDP |
| Tega Cay | 3 | 14,812 | 12,924 | 2.62% | 3,222 | 4.60 | City |
| York | 4 | 9,553 | 8,555 | 2.14% | 1,127 | 8.48 | City |
| Clover | 5 | 7,825 | 6,740 | 2.85% | 1,655 | 4.73 | Town |
| Baxter Village | 6 | 5,524 | 4,694 | 7.14% | 3,885 | 1.42 | CDP |
| India Hook | 7 | 4,649 | 3,762 | 1.93% | 1,764 | 2.64 | CDP |
| Newport | 8 | 4,248 | 4,432 | 0.17% | 528 | 8.05 | CDP |
| Riverview | 9 | 2,342 | 2,479 | 4.93% | 1,877 | 1.25 | CDP |
| Catawba | 10 | 1,463 | 1,069 | 0.55% | 147 | 9.97 | CDP |
| Sharon | 11 | 469 | 461 | 0.43% | 358 | 1.31 | Town |
| Hickory Grove | 12 | 468 | 452 | 0.65% | 280 | 1.67 | Town |
| McConnells | 13 | 292 | 282 | 0.69% | 86 | 3.39 | Town |
| Smyrna | 14 | 57 | 57 | 0% | 81 | 0.71 | Town |
Rock Hill is the largest city in York County, with a population of 76,289.
Smyrna is the smallest city in York County.
There are 14 cities in York County, South Carolina.