| New Hampshire |  |
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 | 607,687 | 49.2% | 628,099 | 50.8% |
| 0-4 | 39,006 | 3.2% | 36,679 | 3.0% |
| 5-9 | 45,344 | 3.7% | 43,193 | 3.5% |
| 10-14 | 47,510 | 3.8% | 45,745 | 3.7% |
| 15-19 | 44,064 | 3.6% | 42,624 | 3.4% |
| 20-24 | 34,353 | 2.8% | 34,413 | 2.8% |
| 25-29 | 35,427 | 2.9% | 35,928 | 2.9% |
| 30-34 | 44,002 | 3.6% | 44,704 | 3.6% |
| 35-39 | 53,947 | 4.4% | 55,707 | 4.5% |
| 40-44 | 55,707 | 4.5% | 55,818 | 4.5% |
| 45-49 | 48,901 | 4.0% | 49,216 | 4.0% |
| 50-54 | 42,892 | 3.5% | 42,977 | 3.5% |
| 55-59 | 31,380 | 2.5% | 31,284 | 2.5% |
| 60-64 | 23,020 | 1.9% | 23,975 | 1.9% |
| 65-69 | 19,841 | 1.6% | 21,302 | 1.7% |
| 70-74 | 16,724 | 1.4% | 20,460 | 1.7% |
| 75-79 | 12,758 | 1.0% | 17,835 | 1.4% |
| 80-84 | 7,762 | 0.6% | 13,057 | 1.1% |
| 85 | 5,049 | 0.4% | 13,182 | 1.1% |
| Age Distribution by Sex, 1990 | ||||
|
Male
|
Female
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|||
| Number | Percent | Number | Percent | |
| Total Population | 543,544 | 49.0% | 565,708 | 51.0% |
| 0-4 | 42,978 | 3.9% | 41,587 | 3.7% |
| 5-9 | 41,349 | 3.7% | 39,292 | 3.5% |
| 10-14 | 36,696 | 3.3% | 35,029 | 3.2% |
| 15-19 | 38,574 | 3.5% | 37,890 | 3.4% |
| 20-24 | 41,374 | 3.7% | 41,588 | 3.7% |
| 25-29 | 48,763 | 4.4% | 49,899 | 4.5% |
| 30-34 | 52,940 | 4.8% | 53,221 | 4.8% |
| 35-39 | 48,391 | 4.4% | 48,331 | 4.4% |
| 40-44 | 43,064 | 3.9% | 42,846 | 3.9% |
| 45-49 | 32,333 | 2.9% | 31,575 | 2.8% |
| 50-54 | 24,264 | 2.2% | 24,043 | 2.2% |
| 55-59 | 22,119 | 2.0% | 22,584 | 2.0% |
| 60-64 | 20,769 | 1.9% | 22,724 | 2.0% |
| 65-69 | 18,118 | 1.6% | 21,635 | 2.0% |
| 70-74 | 13,679 | 1.2% | 18,039 | 1.6% |
| 75-79 | 9,324 | 0.8% | 14,692 | 1.3% |
| 80-84 | 5,457 | 0.5% | 10,799 | 1.0% |
| 85 | 3,352 | 0.3% | 9,934 | 0.9% |
Source: Census 2000 analyzed by the Social Science Data Analysis Network (SSDAN).