| | Irvington, NJ | East Orange, NJ | United States |
| Population | 60,224 | 68,918 | 329,725,481 |
| Female Population | 51.4% | 54.4% | 50.5% |
| Male Population | 48.6% | 45.6% | 49.5% |
| Median Age | 35.4 | 35.7 | 38.4 |
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| Population - 2010 | 53,830 | 64,328 | 309,327,143 |
| Population - 2000 | 60,695 | 69,824 | 285,036,114 |
| Population - 1990 | 61,018 | 73,552 | 251,960,433 |
| Pop. 2000 to Now | -10.7% | -7.4% | 15.6% |
| Pop. 1990 to Now | -11.1% | -12.1% | 30.8% |
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| Population Density | 20,568.3 | 17,545.3 | 93.4 |
| Land Area | 2.9 | 3.9 | 3,531,905.4 |
| Water Area | 0.0 | 0.0 | 264,836.8 |
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| Est. Total Population By Age | | | |
| | Irvington, NJ | East Orange, NJ | United States |
| Age 0 to 4 | 7.4% | 7.1% | 5.9% |
| Age 5 to 9 | 7.9% | 6.8% | 6.1% |
| Age 10 to 14 | 6.3% | 5.7% | 6.6% |
| Age 15 to 17 | 3.6% | 3.6% | 3.9% |
| Age 18 to 20 | 3.2% | 3.2% | 4.0% |
| Age 21 to 24 | 5.8% | 4.9% | 5.2% |
| Age 25 to 34 | 15.2% | 17.7% | 13.8% |
| Age 35 to 44 | 13.2% | 13.6% | 12.9% |
| Age 45 to 54 | 12.8% | 12.0% | 12.6% |
| Age 55 to 59 | 6.3% | 6.4% | 6.7% |
| Age 60 to 64 | 5.8% | 5.2% | 6.3% |
| Age 65 to 74 | 7.5% | 8.0% | 9.6% |
| Age 75 to 84 | 3.8% | 4.2% | 4.5% |
| Age 85 and over | 1.3% | 1.8% | 1.9% |
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| Race | | | |
| | Irvington, NJ | East Orange, NJ | United States |
| White | 2.7% | 1.8% | 59.4% |
| Black | 83.9% | 80.7% | 12.2% |
| Asian | 0.5% | 1.8% | 5.6% |
| Native American | 0.4% | 0.2% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.3% | 0.9% | 0.4% |
| Two or More Races | 2.5% | 2.8% | 3.2% |
| Hispanic | 9.6% | 11.7% | 18.4% |
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| Marriage & Family | | | |
| | Irvington, NJ | East Orange, NJ | United States |
| Married Population | 32.8% | 31.6% | 49.8% |
| Currently Married | 28.2% | 27.4% | 48.0% |
| Married but Separated | 4.6% | 4.3% | 1.8% |
| Single Population | 67.2% | 68.4% | 50.2% |
| Never Married | 53.3% | 52.0% | 33.8% |
| Divorced | 9.2% | 10.1% | 10.8% |
| Widowed | 4.6% | 6.2% | 5.6% |
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| Household Size | 2.69 | 2.61 | 2.60 |
| Households | 22,208 | 26,060 | 124,010,992 |
| Family Households | 12,640 | 14,459 | 80,755,759 |
| Married couple, w/children | 21.3% | 16.6% | 30.5% |
| Married couple, no children | 22.0% | 24.9% | 42.9% |
| Non Family Households | 9,568 | 11,601 | 43,255,233 |
| Single householder, w/children | 32.1% | 34.6% | 15.8% |
| Single householder, no children | 24.5% | 24.0% | 10.8% |