| |
| Age Group | Male | Female | Oklahoma, 2000, Universe: 001 Total population Universe Population: 3,450,654 | ||
| Population | Pct | Population | Pct |  | |
| Total | 1,695,895 | 49.1 | 1,754,759 | 50.9 | |
| 0- 4 | 121,605 | 3.5 | 114,748 | 3.3 | |
| 5- 9 | 125,130 | 3.6 | 119,395 | 3.5 | |
| 10-14 | 128,849 | 3.7 | 123,180 | 3.6 | |
| 15-19 | 139,122 | 4.0 | 130,251 | 3.8 | |
| 20-24 | 127,797 | 3.7 | 119,368 | 3.5 | |
| 25-29 | 116,965 | 3.4 | 112,061 | 3.2 | |
| 30-34 | 112,508 | 3.3 | 110,113 | 3.2 | |
| 35-39 | 129,416 | 3.8 | 129,715 | 3.8 | |
| 40-44 | 131,306 | 3.8 | 133,085 | 3.9 | |
| 45-49 | 119,074 | 3.5 | 121,731 | 3.5 | |
| 50-54 | 103,955 | 3.0 | 109,001 | 3.2 | |
| 55-59 | 83,872 | 2.4 | 89,327 | 2.6 | |
| 60-64 | 68,185 | 2.0 | 74,945 | 2.2 | |
| 65-69 | 59,486 | 1.7 | 69,270 | 2.0 | |
| 70-74 | 50,607 | 1.5 | 63,136 | 1.8 | |
| 75-79 | 39,283 | 1.1 | 54,785 | 1.6 | |
| 80-84 | 22,829 | 0.7 | 39,379 | 1.1 | |
| 85+ | 15,906 | 0.5 | 41,269 | 1.2 | |