| Nebraska |  |
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
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Female
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| Number | Percent | Number | Percent | |
| Total Population | 843,351 | 49.3% | 867,912 | 50.7% |
| 0-4 | 59,681 | 3.5% | 57,367 | 3.4% |
| 5-9 | 63,001 | 3.7% | 60,444 | 3.5% |
| 10-14 | 66,180 | 3.9% | 62,754 | 3.7% |
| 15-19 | 69,235 | 4.0% | 65,674 | 3.8% |
| 20-24 | 61,301 | 3.6% | 59,030 | 3.4% |
| 25-29 | 57,373 | 3.4% | 54,676 | 3.2% |
| 30-34 | 56,673 | 3.3% | 54,551 | 3.2% |
| 35-39 | 65,339 | 3.8% | 64,688 | 3.8% |
| 40-44 | 67,281 | 3.9% | 66,526 | 3.9% |
| 45-49 | 61,050 | 3.6% | 61,664 | 3.6% |
| 50-54 | 51,556 | 3.0% | 51,484 | 3.0% |
| 55-59 | 38,280 | 2.2% | 39,304 | 2.3% |
| 60-64 | 30,771 | 1.8% | 33,185 | 1.9% |
| 65-69 | 27,728 | 1.6% | 31,663 | 1.9% |
| 70-74 | 25,337 | 1.5% | 30,971 | 1.8% |
| 75-79 | 20,320 | 1.2% | 27,671 | 1.6% |
| 80-84 | 12,683 | 0.7% | 21,869 | 1.3% |
| 85 | 9,562 | 0.6% | 24,391 | 1.4% |
| 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 | 769,439 | 48.7% | 808,946 | 51.3% |
| 0-4 | 61,407 | 3.9% | 58,199 | 3.7% |
| 5-9 | 64,659 | 4.1% | 61,742 | 3.9% |
| 10-14 | 60,239 | 3.8% | 57,144 | 3.6% |
| 15-19 | 57,530 | 3.6% | 55,330 | 3.5% |
| 20-24 | 54,477 | 3.5% | 54,172 | 3.4% |
| 25-29 | 62,702 | 4.0% | 62,516 | 4.0% |
| 30-34 | 66,117 | 4.2% | 65,873 | 4.2% |
| 35-39 | 61,638 | 3.9% | 62,140 | 3.9% |
| 40-44 | 52,541 | 3.3% | 52,493 | 3.3% |
| 45-49 | 40,180 | 2.5% | 40,488 | 2.6% |
| 50-54 | 33,733 | 2.1% | 34,988 | 2.2% |
| 55-59 | 32,400 | 2.1% | 34,881 | 2.2% |
| 60-64 | 32,481 | 2.1% | 35,247 | 2.2% |
| 65-69 | 29,799 | 1.9% | 34,264 | 2.2% |
| 70-74 | 22,811 | 1.4% | 30,769 | 1.9% |
| 75-79 | 17,380 | 1.1% | 26,845 | 1.7% |
| 80-84 | 11,287 | 0.7% | 20,711 | 1.3% |
| 85 | 8,058 | 0.5% | 21,144 | 1.3% |
Source: Census 2000 analyzed by the Social Science Data Analysis Network (SSDAN).