| | Pittsfield, NH | Hillsboro, OH | United States |
| Population | 4,129 | 6,471 | 329,725,481 |
| Female Population | 52.0% | 54.9% | 50.5% |
| Male Population | 48.0% | 45.1% | 49.5% |
| Median Age | 48.7 | 41.6 | 38.4 |
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| Population - 2010 | 4,110 | 6,600 | 309,327,143 |
| Population - 2000 | 3,931 | 6,368 | 285,036,114 |
| Population - 1990 | 3,701 | 6,235 | 251,960,433 |
| Pop. 2000 to Now | 5.4% | 3.3% | 15.6% |
| Pop. 1990 to Now | 11.9% | 5.5% | 30.8% |
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| Population Density | 173.4 | 1,181.9 | 93.4 |
| Land Area | 23.8 | 5.5 | 3,531,905.4 |
| Water Area | 0.3 | 0.0 | 264,836.8 |
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| Est. Total Population By Age | | | |
| | Pittsfield, NH | Hillsboro, OH | United States |
| Age 0 to 4 | 3.4% | 6.0% | 5.9% |
| Age 5 to 9 | 2.7% | 5.5% | 6.1% |
| Age 10 to 14 | 9.4% | 4.6% | 6.6% |
| Age 15 to 17 | 3.6% | 4.8% | 3.9% |
| Age 18 to 20 | 0.7% | 4.3% | 4.0% |
| Age 21 to 24 | 3.1% | 6.2% | 5.2% |
| Age 25 to 34 | 10.1% | 11.0% | 13.8% |
| Age 35 to 44 | 12.7% | 10.7% | 12.9% |
| Age 45 to 54 | 12.0% | 9.6% | 12.6% |
| Age 55 to 59 | 9.4% | 3.4% | 6.7% |
| Age 60 to 64 | 10.3% | 8.8% | 6.3% |
| Age 65 to 74 | 15.9% | 13.8% | 9.6% |
| Age 75 to 84 | 4.5% | 8.3% | 4.5% |
| Age 85 and over | 2.1% | 3.2% | 1.9% |
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| Race | | | |
| | Pittsfield, NH | Hillsboro, OH | United States |
| White | 97.6% | 89.4% | 59.4% |
| Black | 0.0% | 4.5% | 12.2% |
| Asian | 0.3% | 0.0% | 5.6% |
| Native American | 0.0% | 0.5% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 0.3% | 0.4% |
| Two or More Races | 0.5% | 3.4% | 3.2% |
| Hispanic | 1.7% | 1.9% | 18.4% |
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| Marriage & Family | | | |
| | Pittsfield, NH | Hillsboro, OH | United States |
| Married Population | 54.3% | 42.4% | 49.8% |
| Currently Married | 53.6% | 39.2% | 48.0% |
| Married but Separated | 0.7% | 3.2% | 1.8% |
| Single Population | 45.7% | 57.6% | 50.2% |
| Never Married | 22.3% | 29.9% | 33.8% |
| Divorced | 17.4% | 17.6% | 10.8% |
| Widowed | 5.9% | 10.1% | 5.6% |
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| Household Size | 2.26 | 2.14 | 2.60 |
| Households | 1,823 | 2,846 | 124,010,992 |
| Family Households | 1,105 | 1,632 | 80,755,759 |
| Married couple, w/children | 21.6% | 19.7% | 30.5% |
| Married couple, no children | 56.0% | 42.9% | 42.9% |
| Non Family Households | 718 | 1,214 | 43,255,233 |
| Single householder, w/children | 12.7% | 26.5% | 15.8% |
| Single householder, no children | 9.7% | 10.9% | 10.8% |