| Alaska |  |
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 | 320,684 | 51.7% | 300,111 | 48.3% |
| 0-4 | 24,249 | 3.9% | 23,027 | 3.7% |
| 5-9 | 27,264 | 4.4% | 26,050 | 4.2% |
| 10-14 | 28,824 | 4.6% | 27,336 | 4.4% |
| 15-19 | 26,124 | 4.2% | 23,520 | 3.8% |
| 20-24 | 21,033 | 3.4% | 18,570 | 3.0% |
| 25-29 | 21,999 | 3.5% | 20,638 | 3.3% |
| 30-34 | 23,871 | 3.8% | 22,201 | 3.6% |
| 35-39 | 28,250 | 4.6% | 26,912 | 4.3% |
| 40-44 | 29,424 | 4.7% | 28,255 | 4.6% |
| 45-49 | 27,569 | 4.4% | 25,276 | 4.1% |
| 50-54 | 22,000 | 3.5% | 18,904 | 3.0% |
| 55-59 | 14,489 | 2.3% | 12,581 | 2.0% |
| 60-64 | 9,061 | 1.5% | 8,022 | 1.3% |
| 65-69 | 6,280 | 1.0% | 6,209 | 1.0% |
| 70-74 | 4,815 | 0.8% | 4,974 | 0.8% |
| 75-79 | 3,032 | 0.5% | 3,765 | 0.6% |
| 80-84 | 1,509 | 0.2% | 2,159 | 0.3% |
| 85 | 891 | 0.1% | 1,712 | 0.3% |
| 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 | 289,867 | 52.7% | 260,176 | 47.3% |
| 0-4 | 28,189 | 5.1% | 26,708 | 4.9% |
| 5-9 | 26,635 | 4.8% | 25,101 | 4.6% |
| 10-14 | 22,503 | 4.1% | 20,676 | 3.8% |
| 15-19 | 19,689 | 3.6% | 17,462 | 3.2% |
| 20-24 | 22,783 | 4.1% | 18,445 | 3.4% |
| 25-29 | 28,185 | 5.1% | 25,156 | 4.6% |
| 30-34 | 30,718 | 5.6% | 28,906 | 5.3% |
| 35-39 | 30,720 | 5.6% | 27,048 | 4.9% |
| 40-44 | 24,652 | 4.5% | 20,677 | 3.8% |
| 45-49 | 17,578 | 3.2% | 14,539 | 2.6% |
| 50-54 | 11,945 | 2.2% | 9,867 | 1.8% |
| 55-59 | 8,817 | 1.6% | 7,778 | 1.4% |
| 60-64 | 6,901 | 1.3% | 5,996 | 1.1% |
| 65-69 | 4,780 | 0.9% | 4,846 | 0.9% |
| 70-74 | 2,826 | 0.5% | 3,096 | 0.6% |
| 75-79 | 1,692 | 0.3% | 1,947 | 0.4% |
| 80-84 | 781 | 0.1% | 1,150 | 0.2% |
| 85 | 473 | 0.1% | 778 | 0.1% |
Source: Census 2000 analyzed by the Social Science Data Analysis Network (SSDAN).