| | Beachwood, NJ | Greene, ME | United States |
| Population | 10,863 | 4,403 | 329,725,481 |
| Female Population | 51.5% | 48.0% | 50.5% |
| Male Population | 48.6% | 52.0% | 49.5% |
| Median Age | 41.3 | 40.5 | 38.4 |
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| Population - 2010 | 11,052 | 4,349 | 309,327,143 |
| Population - 2000 | 10,375 | 4,076 | 285,036,114 |
| Population - 1990 | 9,324 | 3,661 | 251,960,433 |
| Pop. 2000 to Now | 10.2% | 6.7% | 15.6% |
| Pop. 1990 to Now | 22.6% | 18.7% | 30.8% |
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| Population Density | 3,931.6 | 136.4 | 93.4 |
| Land Area | 2.8 | 32.3 | 3,531,905.4 |
| Water Area | 0.0 | 2.9 | 264,836.8 |
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| Est. Total Population By Age | | | |
| | Beachwood, NJ | Greene, ME | United States |
| Age 0 to 4 | 5.3% | 7.7% | 5.9% |
| Age 5 to 9 | 6.1% | 6.7% | 6.1% |
| Age 10 to 14 | 4.8% | 4.1% | 6.6% |
| Age 15 to 17 | 4.4% | 3.9% | 3.9% |
| Age 18 to 20 | 4.3% | 2.8% | 4.0% |
| Age 21 to 24 | 5.7% | 4.0% | 5.2% |
| Age 25 to 34 | 10.6% | 13.3% | 13.8% |
| Age 35 to 44 | 13.0% | 13.8% | 12.9% |
| Age 45 to 54 | 13.3% | 15.9% | 12.6% |
| Age 55 to 59 | 8.0% | 5.8% | 6.7% |
| Age 60 to 64 | 6.7% | 5.7% | 6.3% |
| Age 65 to 74 | 12.3% | 9.3% | 9.6% |
| Age 75 to 84 | 3.8% | 6.0% | 4.5% |
| Age 85 and over | 1.6% | 1.1% | 1.9% |
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| Race | | | |
| | Beachwood, NJ | Greene, ME | United States |
| White | 81.7% | 95.2% | 59.4% |
| Black | 4.0% | 0.2% | 12.2% |
| Asian | 0.5% | 0.3% | 5.6% |
| Native American | 0.1% | 0.0% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.1% | 0.2% |
| Other | 0.0% | 0.0% | 0.4% |
| Two or More Races | 2.2% | 1.7% | 3.2% |
| Hispanic | 11.6% | 2.7% | 18.4% |
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| Marriage & Family | | | |
| | Beachwood, NJ | Greene, ME | United States |
| Married Population | 52.8% | 65.3% | 49.8% |
| Currently Married | 51.9% | 65.3% | 48.0% |
| Married but Separated | 0.9% | 0.0% | 1.8% |
| Single Population | 47.2% | 34.7% | 50.2% |
| Never Married | 32.2% | 19.5% | 33.8% |
| Divorced | 9.3% | 11.6% | 10.8% |
| Widowed | 5.7% | 3.7% | 5.6% |
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| Household Size | 2.77 | 2.65 | 2.60 |
| Households | 3,916 | 1,661 | 124,010,992 |
| Family Households | 2,990 | 1,243 | 80,755,759 |
| Married couple, w/children | 31.3% | 35.0% | 30.5% |
| Married couple, no children | 44.1% | 54.6% | 42.9% |
| Non Family Households | 926 | 418 | 43,255,233 |
| Single householder, w/children | 9.9% | 6.6% | 15.8% |
| Single householder, no children | 14.6% | 3.8% | 10.8% |