| |
| Age Group | Male | Female | Texas, 2000, Universe: 001 Total population Universe Population: 20,851,820 | ||
| Population | Pct | Population | Pct |  | |
| Total | 10,352,910 | 49.6 | 10,498,910 | 50.4 | |
| 0- 4 | 830,745 | 4.0 | 793,883 | 3.8 | |
| 5- 9 | 844,959 | 4.1 | 809,225 | 3.9 | |
| 10-14 | 834,526 | 4.0 | 796,666 | 3.8 | |
| 15-19 | 847,462 | 4.1 | 788,770 | 3.8 | |
| 20-24 | 794,799 | 3.8 | 744,605 | 3.6 | |
| 25-29 | 810,965 | 3.9 | 780,557 | 3.7 | |
| 30-34 | 798,051 | 3.8 | 772,510 | 3.7 | |
| 35-39 | 849,270 | 4.1 | 839,613 | 4.0 | |
| 40-44 | 819,334 | 3.9 | 814,021 | 3.9 | |
| 45-49 | 702,056 | 3.4 | 714,122 | 3.4 | |
| 50-54 | 587,762 | 2.8 | 607,197 | 2.9 | |
| 55-59 | 436,105 | 2.1 | 460,416 | 2.2 | |
| 60-64 | 334,695 | 1.6 | 366,974 | 1.8 | |
| 65-69 | 283,517 | 1.4 | 326,915 | 1.6 | |
| 70-74 | 234,965 | 1.1 | 297,211 | 1.4 | |
| 75-79 | 175,337 | 0.8 | 248,697 | 1.2 | |
| 80-84 | 100,142 | 0.5 | 167,808 | 0.8 | |
| 85+ | 68,220 | 0.3 | 169,720 | 0.8 | |