| |
| Age Group | Male | Female | Missouri, 2000, Universe: 001 Total population Universe Population: 5,595,211 | ||
| Population | Pct | Population | Pct |  | |
| Total | 2,720,177 | 48.6 | 2,875,034 | 51.4 | |
| 0- 4 | 189,250 | 3.4 | 180,648 | 3.2 | |
| 5- 9 | 204,037 | 3.6 | 194,861 | 3.5 | |
| 10-14 | 211,383 | 3.8 | 200,697 | 3.6 | |
| 15-19 | 210,835 | 3.8 | 202,461 | 3.6 | |
| 20-24 | 184,685 | 3.3 | 184,813 | 3.3 | |
| 25-29 | 180,285 | 3.2 | 182,020 | 3.3 | |
| 30-34 | 187,446 | 3.4 | 188,982 | 3.4 | |
| 35-39 | 219,939 | 3.9 | 223,311 | 4.0 | |
| 40-44 | 219,458 | 3.9 | 224,861 | 4.0 | |
| 45-49 | 193,673 | 3.5 | 201,943 | 3.6 | |
| 50-54 | 168,679 | 3.0 | 178,167 | 3.2 | |
| 55-59 | 134,452 | 2.4 | 144,621 | 2.6 | |
| 60-64 | 108,820 | 1.9 | 119,505 | 2.1 | |
| 65-69 | 94,889 | 1.7 | 110,483 | 2.0 | |
| 70-74 | 83,198 | 1.5 | 104,656 | 1.9 | |
| 75-79 | 64,159 | 1.1 | 93,048 | 1.7 | |
| 80-84 | 38,046 | 0.7 | 68,329 | 1.2 | |
| 85+ | 26,943 | 0.5 | 71,628 | 1.3 | |