| | Hancock, NH | Hillsborough, NH | United States |
| Population | 1,707 | 5,962 | 329,725,481 |
| Female Population | 51.9% | 43.0% | 50.5% |
| Male Population | 48.1% | 57.0% | 49.5% |
| Median Age | 55.7 | 44.3 | 38.4 |
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| Population - 2010 | 1,649 | 6,013 | 309,327,143 |
| Population - 2000 | 1,739 | 4,928 | 285,036,114 |
| Population - 1990 | 1,604 | 4,498 | 251,960,433 |
| Pop. 2000 to Now | -5.1% | 22.1% | 15.6% |
| Pop. 1990 to Now | 2.9% | 33.8% | 30.8% |
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| Population Density | 57.0 | 136.6 | 93.4 |
| Land Area | 30.0 | 43.6 | 3,531,905.4 |
| Water Area | 1.2 | 1.0 | 264,836.8 |
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| Est. Total Population By Age | | | |
| | Hancock, NH | Hillsborough, NH | United States |
| Age 0 to 4 | 2.0% | 1.5% | 5.9% |
| Age 5 to 9 | 2.8% | 4.2% | 6.1% |
| Age 10 to 14 | 4.5% | 7.3% | 6.6% |
| Age 15 to 17 | 3.6% | 5.3% | 3.9% |
| Age 18 to 20 | 2.4% | 1.6% | 4.0% |
| Age 21 to 24 | 5.2% | 8.5% | 5.2% |
| Age 25 to 34 | 2.2% | 10.3% | 13.8% |
| Age 35 to 44 | 7.7% | 15.7% | 12.9% |
| Age 45 to 54 | 15.2% | 11.9% | 12.6% |
| Age 55 to 59 | 13.1% | 8.3% | 6.7% |
| Age 60 to 64 | 8.6% | 8.6% | 6.3% |
| Age 65 to 74 | 21.5% | 11.0% | 9.6% |
| Age 75 to 84 | 7.2% | 4.4% | 4.5% |
| Age 85 and over | 4.2% | 1.3% | 1.9% |
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| Race | | | |
| | Hancock, NH | Hillsborough, NH | United States |
| White | 93.6% | 91.5% | 59.4% |
| Black | 0.2% | 0.5% | 12.2% |
| Asian | 0.3% | 0.0% | 5.6% |
| Native American | 0.9% | 0.0% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.3% | 0.0% | 0.4% |
| Two or More Races | 0.6% | 3.4% | 3.2% |
| Hispanic | 4.0% | 4.6% | 18.4% |
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| Marriage & Family | | | |
| | Hancock, NH | Hillsborough, NH | United States |
| Married Population | 58.0% | 49.8% | 49.8% |
| Currently Married | 57.7% | 48.9% | 48.0% |
| Married but Separated | 0.3% | 0.9% | 1.8% |
| Single Population | 42.0% | 50.2% | 50.2% |
| Never Married | 19.7% | 27.7% | 33.8% |
| Divorced | 14.8% | 16.4% | 10.8% |
| Widowed | 7.5% | 6.1% | 5.6% |
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| Household Size | 2.17 | 2.64 | 2.60 |
| Households | 787 | 2,241 | 124,010,992 |
| Family Households | 483 | 1,420 | 80,755,759 |
| Married couple, w/children | 21.1% | 32.2% | 30.5% |
| Married couple, no children | 68.7% | 44.0% | 42.9% |
| Non Family Households | 304 | 821 | 43,255,233 |
| Single householder, w/children | 2.7% | 13.2% | 15.8% |
| Single householder, no children | 7.5% | 10.6% | 10.8% |