| | Hancock, MD | Hancock, NH | United States |
| Population | 1,622 | 1,707 | 329,725,481 |
| Female Population | 52.1% | 51.9% | 50.5% |
| Male Population | 47.9% | 48.1% | 49.5% |
| Median Age | 39.1 | 55.7 | 38.4 |
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| Population - 2010 | 1,560 | 1,649 | 309,327,143 |
| Population - 2000 | 1,725 | 1,739 | 285,036,114 |
| Population - 1990 | 1,926 | 1,604 | 251,960,433 |
| Pop. 2000 to Now | -11.8% | -5.1% | 15.6% |
| Pop. 1990 to Now | -21.0% | 2.9% | 30.8% |
| space4 | | | |
| Population Density | 587.5 | 57.0 | 93.4 |
| Land Area | 2.8 | 30.0 | 3,531,905.4 |
| Water Area | 0.0 | 1.2 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Hancock, MD | Hancock, NH | United States |
| Age 0 to 4 | 8.7% | 2.0% | 5.9% |
| Age 5 to 9 | 5.0% | 2.8% | 6.1% |
| Age 10 to 14 | 7.1% | 4.5% | 6.6% |
| Age 15 to 17 | 1.7% | 3.6% | 3.9% |
| Age 18 to 20 | 3.5% | 2.4% | 4.0% |
| Age 21 to 24 | 6.5% | 5.2% | 5.2% |
| Age 25 to 34 | 11.8% | 2.2% | 13.8% |
| Age 35 to 44 | 10.0% | 7.7% | 12.9% |
| Age 45 to 54 | 14.7% | 15.2% | 12.6% |
| Age 55 to 59 | 5.8% | 13.1% | 6.7% |
| Age 60 to 64 | 4.9% | 8.6% | 6.3% |
| Age 65 to 74 | 12.9% | 21.5% | 9.6% |
| Age 75 to 84 | 6.4% | 7.2% | 4.5% |
| Age 85 and over | 1.1% | 4.2% | 1.9% |
| space1 | | | |
| Race | | | |
| | Hancock, MD | Hancock, NH | United States |
| White | 94.7% | 93.6% | 59.4% |
| Black | 0.6% | 0.2% | 12.2% |
| Asian | 1.4% | 0.3% | 5.6% |
| Native American | 0.1% | 0.9% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 1.0% | 0.3% | 0.4% |
| Two or More Races | 2.2% | 0.6% | 3.2% |
| Hispanic | 0.0% | 4.0% | 18.4% |
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| Marriage & Family | | | |
| | Hancock, MD | Hancock, NH | United States |
| Married Population | 55.2% | 58.0% | 49.8% |
| Currently Married | 53.9% | 57.7% | 48.0% |
| Married but Separated | 1.2% | 0.3% | 1.8% |
| Single Population | 44.8% | 42.0% | 50.2% |
| Never Married | 25.0% | 19.7% | 33.8% |
| Divorced | 12.9% | 14.8% | 10.8% |
| Widowed | 6.9% | 7.5% | 5.6% |
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| Household Size | 2.27 | 2.17 | 2.60 |
| Households | 714 | 787 | 124,010,992 |
| Family Households | 455 | 483 | 80,755,759 |
| Married couple, w/children | 27.9% | 21.1% | 30.5% |
| Married couple, no children | 43.1% | 68.7% | 42.9% |
| Non Family Households | 259 | 304 | 43,255,233 |
| Single householder, w/children | 20.0% | 2.7% | 15.8% |
| Single householder, no children | 9.0% | 7.5% | 10.8% |