| 7,022 | (16%) | |
| 6,919 | (16%) | |
| 6,004 | (14%) | |
| 5,229 | (12%) | |
| 4,555 | (10%) | |
| 3,337 | (8%) | |
| 3,140 | (7%) | |
| 2,040 | (5%) | |
| 1,929 | (4%) | |
| 1,893 | (4%) | |
| 1,124 | (3%) | |
| 144 | (0%) |
Source: U.S. Census Bureau - A.C.S 2007
| 85,152 | (100%) | |
| 66,050 | (78%) | |
| 10,136 | (12%) | |
| 6,731 | (8%) | |
| 4,112 | (5%) | |
| 828 | (1%) | |
| 125 | (0%) |
Round Rock Texas's population is estimated to be approximately 85,152. There are 66,050 White residents which make up 77.60 % of the states' population. The remaining population is made up of 10,136 Blacks, 6,731 Others, 4,112 Asians, 828 Native Americans, and 125 Hawaiian & Pacific Islanders.