| | Montandon, PA | Brooklawn, NJ | United States |
| Population | 814 | 1,837 | 329,725,481 |
| Female Population | 46.8% | 50.7% | 50.5% |
| Male Population | 53.2% | 49.3% | 49.5% |
| Median Age | 38.6 | 41.2 | 38.4 |
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| Population - 2010 | 1,095 | 1,937 | 309,327,143 |
| Population - 2000 | 838 | 2,354 | 285,036,114 |
| Population - 1990 | 927 | 1,805 | 251,960,433 |
| Pop. 2000 to Now | 15.9% | -19.6% | 15.6% |
| Pop. 1990 to Now | 4.8% | 4.9% | 30.8% |
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| Population Density | 945.4 | 3,764.3 | 93.4 |
| Land Area | 0.9 | 0.5 | 3,531,905.4 |
| Water Area | 0.0 | 0.0 | 264,836.8 |
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| Est. Total Population By Age | | | |
| | Montandon, PA | Brooklawn, NJ | United States |
| Age 0 to 4 | 8.1% | 6.0% | 5.9% |
| Age 5 to 9 | 8.6% | 6.4% | 6.1% |
| Age 10 to 14 | 4.1% | 5.0% | 6.6% |
| Age 15 to 17 | 0.0% | 2.2% | 3.9% |
| Age 18 to 20 | 1.7% | 3.3% | 4.0% |
| Age 21 to 24 | 0.2% | 2.6% | 5.2% |
| Age 25 to 34 | 13.1% | 16.9% | 13.8% |
| Age 35 to 44 | 22.9% | 10.7% | 12.9% |
| Age 45 to 54 | 3.7% | 15.4% | 12.6% |
| Age 55 to 59 | 7.0% | 6.5% | 6.7% |
| Age 60 to 64 | 4.3% | 5.0% | 6.3% |
| Age 65 to 74 | 12.3% | 7.9% | 9.6% |
| Age 75 to 84 | 12.2% | 9.2% | 4.5% |
| Age 85 and over | 1.8% | 2.9% | 1.9% |
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| Race | | | |
| | Montandon, PA | Brooklawn, NJ | United States |
| White | 90.2% | 73.3% | 59.4% |
| Black | 0.2% | 12.5% | 12.2% |
| Asian | 0.0% | 4.5% | 5.6% |
| Native American | 0.0% | 0.0% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 0.0% | 0.4% |
| Two or More Races | 5.3% | 1.4% | 3.2% |
| Hispanic | 4.3% | 8.2% | 18.4% |
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| Marriage & Family | | | |
| | Montandon, PA | Brooklawn, NJ | United States |
| Married Population | 56.6% | 48.6% | 49.8% |
| Currently Married | 54.6% | 46.1% | 48.0% |
| Married but Separated | 2.0% | 2.6% | 1.8% |
| Single Population | 43.4% | 51.4% | 50.2% |
| Never Married | 19.8% | 37.0% | 33.8% |
| Divorced | 12.4% | 10.3% | 10.8% |
| Widowed | 11.2% | 4.0% | 5.6% |
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| Household Size | 2.33 | 2.21 | 2.60 |
| Households | 344 | 830 | 124,010,992 |
| Family Households | 235 | 520 | 80,755,759 |
| Married couple, w/children | 25.5% | 23.1% | 30.5% |
| Married couple, no children | 44.3% | 38.1% | 42.9% |
| Non Family Households | 109 | 310 | 43,255,233 |
| Single householder, w/children | 22.6% | 20.4% | 15.8% |
| Single householder, no children | 7.7% | 18.5% | 10.8% |