5 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Rockwall | 1 | 54,996 | 47,748 | 2.71% | 1,859 | 30 | City |
| Fate | 2 | 29,728 | 18,423 | 8.23% | 2,509 | 12 | City |
| Royse City | 3 | 29,544 | 13,756 | 11.96% | 1,538 | 19 | City |
| Heath | 4 | 11,935 | 9,753 | 3.79% | 966 | 12 | City |
| McLendon-Chisholm | 5 | 5,699 | 3,657 | 7.71% | 453 | 13 | City |
Rockwall is the largest city in Rockwall County, with a population of 54,996.
McLendon-Chisholm is the smallest city in Rockwall County, with a population of 5,699.
There are 5 cities in Rockwall County, Texas.