| | Haworth, NJ | Dumont, NJ | United States |
| Population | 3,341 | 17,965 | 329,725,481 |
| Female Population | 48.5% | 51.8% | 50.5% |
| Male Population | 51.5% | 48.2% | 49.5% |
| Median Age | 46.2 | 42.8 | 38.4 |
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| Population - 2010 | 3,378 | 17,413 | 309,327,143 |
| Population - 2000 | 3,390 | 17,503 | 285,036,114 |
| Population - 1990 | 3,384 | 17,187 | 251,960,433 |
| Pop. 2000 to Now | -0.5% | 0.5% | 15.6% |
| Pop. 1990 to Now | -0.3% | 2.3% | 30.8% |
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| Population Density | 1,724.8 | 9,217.6 | 93.4 |
| Land Area | 1.9 | 1.9 | 3,531,905.4 |
| Water Area | 0.4 | 0.0 | 264,836.8 |
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| Est. Total Population By Age | | | |
| | Haworth, NJ | Dumont, NJ | United States |
| Age 0 to 4 | 3.6% | 5.0% | 5.9% |
| Age 5 to 9 | 8.4% | 5.0% | 6.1% |
| Age 10 to 14 | 11.8% | 5.3% | 6.6% |
| Age 15 to 17 | 6.3% | 3.7% | 3.9% |
| Age 18 to 20 | 1.6% | 3.1% | 4.0% |
| Age 21 to 24 | 3.5% | 6.6% | 5.2% |
| Age 25 to 34 | 4.6% | 10.4% | 13.8% |
| Age 35 to 44 | 9.5% | 12.0% | 12.9% |
| Age 45 to 54 | 13.4% | 12.8% | 12.6% |
| Age 55 to 59 | 11.8% | 10.6% | 6.7% |
| Age 60 to 64 | 7.4% | 9.1% | 6.3% |
| Age 65 to 74 | 11.0% | 7.8% | 9.6% |
| Age 75 to 84 | 4.2% | 5.3% | 4.5% |
| Age 85 and over | 2.8% | 3.3% | 1.9% |
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| Race | | | |
| | Haworth, NJ | Dumont, NJ | United States |
| White | 73.2% | 53.8% | 59.4% |
| Black | 3.2% | 3.3% | 12.2% |
| Asian | 13.7% | 18.0% | 5.6% |
| Native American | 0.1% | 0.0% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 0.1% | 0.4% |
| Two or More Races | 7.1% | 2.8% | 3.2% |
| Hispanic | 2.7% | 22.1% | 18.4% |
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| Marriage & Family | | | |
| | Haworth, NJ | Dumont, NJ | United States |
| Married Population | 70.6% | 58.6% | 49.8% |
| Currently Married | 69.5% | 58.0% | 48.0% |
| Married but Separated | 1.0% | 0.6% | 1.8% |
| Single Population | 29.4% | 41.4% | 50.2% |
| Never Married | 21.4% | 25.8% | 33.8% |
| Divorced | 3.9% | 9.1% | 10.8% |
| Widowed | 4.1% | 6.5% | 5.6% |
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| Household Size | 3.15 | 2.71 | 2.60 |
| Households | 1,059 | 6,626 | 124,010,992 |
| Family Households | 951 | 4,912 | 80,755,759 |
| Married couple, w/children | 42.1% | 34.3% | 30.5% |
| Married couple, no children | 48.7% | 50.4% | 42.9% |
| Non Family Households | 108 | 1,714 | 43,255,233 |
| Single householder, w/children | 2.9% | 6.0% | 15.8% |
| Single householder, no children | 6.3% | 9.2% | 10.8% |