| | Huntington, MA | Duluth, MN | United States |
| Population | 2,205 | 86,711 | 329,725,481 |
| Female Population | 51.2% | 51.2% | 50.5% |
| Male Population | 48.8% | 48.8% | 49.5% |
| Median Age | 43.4 | 33.9 | 38.4 |
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| Population - 2010 | 2,184 | 86,193 | 309,327,143 |
| Population - 2000 | 2,174 | 86,918 | 285,036,114 |
| Population - 1990 | 1,987 | 85,493 | 251,960,433 |
| Pop. 2000 to Now | -0.7% | -1.3% | 15.6% |
| Pop. 1990 to Now | 8.7% | 0.3% | 30.8% |
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| Population Density | 83.8 | 1,210.2 | 93.4 |
| Land Area | 26.3 | 71.7 | 3,531,905.4 |
| Water Area | 0.5 | 19.6 | 264,836.8 |
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| Est. Total Population By Age | | | |
| | Huntington, MA | Duluth, MN | United States |
| Age 0 to 4 | 6.6% | 5.6% | 5.9% |
| Age 5 to 9 | 2.9% | 4.9% | 6.1% |
| Age 10 to 14 | 6.7% | 5.1% | 6.6% |
| Age 15 to 17 | 2.4% | 2.8% | 3.9% |
| Age 18 to 20 | 2.6% | 9.2% | 4.0% |
| Age 21 to 24 | 7.4% | 10.3% | 5.2% |
| Age 25 to 34 | 13.4% | 13.6% | 13.8% |
| Age 35 to 44 | 10.6% | 11.3% | 12.9% |
| Age 45 to 54 | 15.6% | 9.9% | 12.6% |
| Age 55 to 59 | 8.7% | 5.8% | 6.7% |
| Age 60 to 64 | 8.2% | 5.8% | 6.3% |
| Age 65 to 74 | 10.4% | 9.0% | 9.6% |
| Age 75 to 84 | 3.9% | 4.4% | 4.5% |
| Age 85 and over | 0.7% | 2.3% | 1.9% |
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| Race | | | |
| | Huntington, MA | Duluth, MN | United States |
| White | 93.8% | 87.3% | 59.4% |
| Black | 1.3% | 2.6% | 12.2% |
| Asian | 0.0% | 1.6% | 5.6% |
| Native American | 0.2% | 1.6% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.1% | 0.1% | 0.4% |
| Two or More Races | 2.6% | 4.1% | 3.2% |
| Hispanic | 2.1% | 2.7% | 18.4% |
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| Marriage & Family | | | |
| | Huntington, MA | Duluth, MN | United States |
| Married Population | 50.8% | 38.8% | 49.8% |
| Currently Married | 50.4% | 38.2% | 48.0% |
| Married but Separated | 0.4% | 0.7% | 1.8% |
| Single Population | 49.2% | 61.2% | 50.2% |
| Never Married | 26.9% | 44.6% | 33.8% |
| Divorced | 17.1% | 11.5% | 10.8% |
| Widowed | 5.2% | 5.0% | 5.6% |
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| Household Size | 2.42 | 2.23 | 2.60 |
| Households | 911 | 36,106 | 124,010,992 |
| Family Households | 592 | 18,029 | 80,755,759 |
| Married couple, w/children | 28.7% | 27.8% | 30.5% |
| Married couple, no children | 45.8% | 45.5% | 42.9% |
| Non Family Households | 319 | 18,077 | 43,255,233 |
| Single householder, w/children | 13.3% | 17.1% | 15.8% |
| Single householder, no children | 12.2% | 9.5% | 10.8% |