| Missouri |  |
AGE DISTRIBUTION
Drawn as a "population pyramid," an area's age-sex structure hints at its patterns of growth. A top heavy pyramid, like the one for Grant County, North Dakota , suggests negative population growth that might be due to any number of factors, including high death rates, low birth rates, and increased emigration from the area. A bottom heavy pyramid, like the one drawn for Orange County, Florida , suggests high birthrates, falling or stable death rates, and the potential for rapid population growth. Most areas, however, fall somewhere between these two extremes and have a population pyramid that resembles a square, indicating slow and sustained growth with the birth rate exceeding the death rate, though not by a great margin.
| Age Distribution by Sex, 2000 | ||||
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Male
|
Female
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| Number | Percent | Number | Percent | |
| Total Population | 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% |
| Age Distribution by Sex, 1990 | ||||
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Male
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Female
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| Number | Percent | Number | Percent | |
| Total Population | 2,464,315 | 48.2% | 2,652,758 | 51.8% |
| 0-4 | 189,244 | 3.7% | 180,000 | 3.5% |
| 5-9 | 194,084 | 3.8% | 184,766 | 3.6% |
| 10-14 | 184,880 | 3.6% | 175,601 | 3.4% |
| 15-19 | 184,727 | 3.6% | 178,090 | 3.5% |
| 20-24 | 179,174 | 3.5% | 181,451 | 3.5% |
| 25-29 | 208,033 | 4.1% | 211,968 | 4.1% |
| 30-34 | 212,879 | 4.2% | 219,162 | 4.3% |
| 35-39 | 191,030 | 3.7% | 198,595 | 3.9% |
| 40-44 | 168,646 | 3.3% | 176,500 | 3.4% |
| 45-49 | 138,190 | 2.7% | 146,147 | 2.9% |
| 50-54 | 115,516 | 2.3% | 123,324 | 2.4% |
| 55-59 | 109,127 | 2.1% | 119,429 | 2.3% |
| 60-64 | 107,089 | 2.1% | 121,740 | 2.4% |
| 65-69 | 98,304 | 1.9% | 120,669 | 2.4% |
| 70-74 | 73,572 | 1.4% | 101,657 | 2.0% |
| 75-79 | 55,187 | 1.1% | 87,998 | 1.7% |
| 80-84 | 33,107 | 0.6% | 65,970 | 1.3% |
| 85 | 21,526 | 0.4% | 59,691 | 1.2% |
Source: Census 2000 analyzed by the Social Science Data Analysis Network (SSDAN).