| | Readington, NJ | Maywood, NJ | United States |
| Population | 16,104 | 10,049 | 329,725,481 |
| Female Population | 50.4% | 50.4% | 50.5% |
| Male Population | 49.6% | 49.6% | 49.5% |
| Median Age | 50.5 | 44.1 | 38.4 |
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| Population - 2010 | 16,110 | 9,553 | 309,327,143 |
| Population - 2000 | 15,803 | 9,523 | 285,036,114 |
| Population - 1990 | 13,400 | 9,473 | 251,960,433 |
| Pop. 2000 to Now | 0.4% | 0.5% | 15.6% |
| Pop. 1990 to Now | 18.4% | 1.0% | 30.8% |
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| Population Density | 337.4 | 7,808.1 | 93.4 |
| Land Area | 47.7 | 1.3 | 3,531,905.4 |
| Water Area | 0.3 | 0.0 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Readington, NJ | Maywood, NJ | United States |
| Age 0 to 4 | 4.5% | 5.6% | 5.9% |
| Age 5 to 9 | 5.0% | 5.1% | 6.1% |
| Age 10 to 14 | 5.6% | 4.2% | 6.6% |
| Age 15 to 17 | 4.4% | 3.2% | 3.9% |
| Age 18 to 20 | 3.0% | 4.1% | 4.0% |
| Age 21 to 24 | 3.9% | 4.1% | 5.2% |
| Age 25 to 34 | 6.2% | 13.5% | 13.8% |
| Age 35 to 44 | 10.6% | 11.6% | 12.9% |
| Age 45 to 54 | 16.6% | 12.7% | 12.6% |
| Age 55 to 59 | 8.1% | 8.7% | 6.7% |
| Age 60 to 64 | 7.8% | 5.6% | 6.3% |
| Age 65 to 74 | 13.8% | 12.6% | 9.6% |
| Age 75 to 84 | 5.8% | 5.6% | 4.5% |
| Age 85 and over | 4.8% | 3.4% | 1.9% |
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| Race | | | |
| | Readington, NJ | Maywood, NJ | United States |
| White | 83.2% | 49.3% | 59.4% |
| Black | 0.7% | 5.1% | 12.2% |
| Asian | 4.8% | 19.5% | 5.6% |
| Native American | 0.0% | 0.3% | 0.6% |
| Hawaiian, Pacific Islander | 0.1% | 0.0% | 0.2% |
| Other | 0.2% | 0.5% | 0.4% |
| Two or More Races | 2.8% | 2.2% | 3.2% |
| Hispanic | 8.3% | 23.1% | 18.4% |
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| Marriage & Family | | | |
| | Readington, NJ | Maywood, NJ | United States |
| Married Population | 63.7% | 53.5% | 49.8% |
| Currently Married | 62.6% | 52.8% | 48.0% |
| Married but Separated | 1.1% | 0.6% | 1.8% |
| Single Population | 36.3% | 46.5% | 50.2% |
| Never Married | 22.2% | 30.1% | 33.8% |
| Divorced | 8.3% | 7.8% | 10.8% |
| Widowed | 5.8% | 8.7% | 5.6% |
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| Household Size | 2.52 | 2.67 | 2.60 |
| Households | 6,386 | 3,755 | 124,010,992 |
| Family Households | 4,658 | 2,657 | 80,755,759 |
| Married couple, w/children | 35.1% | 28.1% | 30.5% |
| Married couple, no children | 53.8% | 49.6% | 42.9% |
| Non Family Households | 1,728 | 1,098 | 43,255,233 |
| Single householder, w/children | 3.8% | 11.0% | 15.8% |
| Single householder, no children | 7.2% | 11.3% | 10.8% |