| | Saddle Brook, NJ | Bergenfield, NJ | United States |
| Population | 14,313 | 28,282 | 329,725,481 |
| Female Population | 49.6% | 50.3% | 50.5% |
| Male Population | 50.4% | 49.7% | 49.5% |
| Median Age | 38.9 | 39.2 | 38.4 |
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| Population - 2010 | 13,692 | 26,867 | 309,327,143 |
| Population - 2000 | 13,155 | 26,247 | 285,036,114 |
| Population - 1990 | 13,296 | 24,458 | 251,960,433 |
| Pop. 2000 to Now | 3.3% | 4.3% | 15.6% |
| Pop. 1990 to Now | 2.2% | 11.9% | 30.8% |
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| Population Density | 5,322.8 | 9,739.0 | 93.4 |
| Land Area | 2.7 | 2.9 | 3,531,905.4 |
| Water Area | 0.0 | 0.0 | 264,836.8 |
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| Est. Total Population By Age | | | |
| | Saddle Brook, NJ | Bergenfield, NJ | United States |
| Age 0 to 4 | 7.6% | 6.3% | 5.9% |
| Age 5 to 9 | 5.0% | 5.6% | 6.1% |
| Age 10 to 14 | 4.1% | 6.6% | 6.6% |
| Age 15 to 17 | 2.2% | 3.2% | 3.9% |
| Age 18 to 20 | 2.9% | 4.1% | 4.0% |
| Age 21 to 24 | 5.7% | 5.5% | 5.2% |
| Age 25 to 34 | 15.2% | 12.8% | 13.8% |
| Age 35 to 44 | 12.7% | 12.7% | 12.9% |
| Age 45 to 54 | 14.8% | 12.1% | 12.6% |
| Age 55 to 59 | 5.9% | 7.6% | 6.7% |
| Age 60 to 64 | 7.2% | 7.2% | 6.3% |
| Age 65 to 74 | 11.9% | 10.1% | 9.6% |
| Age 75 to 84 | 2.5% | 3.8% | 4.5% |
| Age 85 and over | 2.3% | 2.4% | 1.9% |
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| Race | | | |
| | Saddle Brook, NJ | Bergenfield, NJ | United States |
| White | 66.0% | 36.3% | 59.4% |
| Black | 4.0% | 7.9% | 12.2% |
| Asian | 6.0% | 26.3% | 5.6% |
| Native American | 0.0% | 0.4% | 0.6% |
| Hawaiian, Pacific Islander | 0.2% | 0.0% | 0.2% |
| Other | 0.3% | 0.3% | 0.4% |
| Two or More Races | 0.7% | 1.0% | 3.2% |
| Hispanic | 22.8% | 28.0% | 18.4% |
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| Marriage & Family | | | |
| | Saddle Brook, NJ | Bergenfield, NJ | United States |
| Married Population | 56.3% | 52.7% | 49.8% |
| Currently Married | 54.8% | 50.9% | 48.0% |
| Married but Separated | 1.5% | 1.8% | 1.8% |
| Single Population | 43.7% | 47.3% | 50.2% |
| Never Married | 29.6% | 34.0% | 33.8% |
| Divorced | 9.7% | 7.6% | 10.8% |
| Widowed | 4.4% | 5.6% | 5.6% |
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| Household Size | 2.73 | 3.09 | 2.60 |
| Households | 5,245 | 9,146 | 124,010,992 |
| Family Households | 3,666 | 6,880 | 80,755,759 |
| Married couple, w/children | 40.4% | 39.4% | 30.5% |
| Married couple, no children | 43.5% | 35.8% | 42.9% |
| Non Family Households | 1,579 | 2,266 | 43,255,233 |
| Single householder, w/children | 3.9% | 10.6% | 15.8% |
| Single householder, no children | 12.2% | 14.2% | 10.8% |