| | Cinnaminson, NJ | Little Egg Harbor, NJ | United States |
| Population | 16,915 | 20,693 | 329,725,481 |
| Female Population | 49.9% | 51.5% | 50.5% |
| Male Population | 50.1% | 48.5% | 49.5% |
| Median Age | 43.2 | 51.4 | 38.4 |
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| Population - 2010 | 15,585 | 20,115 | 309,327,143 |
| Population - 2000 | 14,595 | 15,945 | 285,036,114 |
| Population - 1990 | 14,583 | 13,333 | 251,960,433 |
| Pop. 2000 to Now | 13.8% | 38.0% | 15.6% |
| Pop. 1990 to Now | 13.8% | 65.1% | 30.8% |
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| Population Density | 2,253.8 | 436.9 | 93.4 |
| Land Area | 7.5 | 47.4 | 3,531,905.4 |
| Water Area | 0.6 | 25.7 | 264,836.8 |
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| Est. Total Population By Age | | | |
| | Cinnaminson, NJ | Little Egg Harbor, NJ | United States |
| Age 0 to 4 | 5.5% | 3.8% | 5.9% |
| Age 5 to 9 | 5.1% | 6.0% | 6.1% |
| Age 10 to 14 | 6.1% | 5.5% | 6.6% |
| Age 15 to 17 | 3.3% | 2.7% | 3.9% |
| Age 18 to 20 | 4.1% | 1.5% | 4.0% |
| Age 21 to 24 | 4.3% | 3.5% | 5.2% |
| Age 25 to 34 | 9.2% | 8.5% | 13.8% |
| Age 35 to 44 | 14.2% | 11.8% | 12.9% |
| Age 45 to 54 | 14.0% | 12.5% | 12.6% |
| Age 55 to 59 | 8.4% | 7.9% | 6.7% |
| Age 60 to 64 | 7.3% | 9.6% | 6.3% |
| Age 65 to 74 | 10.6% | 14.5% | 9.6% |
| Age 75 to 84 | 4.6% | 8.6% | 4.5% |
| Age 85 and over | 3.2% | 3.6% | 1.9% |
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| Race | | | |
| | Cinnaminson, NJ | Little Egg Harbor, NJ | United States |
| White | 86.3% | 86.7% | 59.4% |
| Black | 4.0% | 2.3% | 12.2% |
| Asian | 1.9% | 2.1% | 5.6% |
| Native American | 0.0% | 0.0% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 0.1% | 0.4% |
| Two or More Races | 3.1% | 3.6% | 3.2% |
| Hispanic | 4.7% | 5.2% | 18.4% |
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| Marriage & Family | | | |
| | Cinnaminson, NJ | Little Egg Harbor, NJ | United States |
| Married Population | 60.2% | 59.5% | 49.8% |
| Currently Married | 59.6% | 58.2% | 48.0% |
| Married but Separated | 0.6% | 1.3% | 1.8% |
| Single Population | 39.8% | 40.5% | 50.2% |
| Never Married | 26.9% | 21.0% | 33.8% |
| Divorced | 7.1% | 11.8% | 10.8% |
| Widowed | 5.8% | 7.7% | 5.6% |
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| Household Size | 2.78 | 2.32 | 2.60 |
| Households | 6,042 | 8,801 | 124,010,992 |
| Family Households | 4,767 | 5,934 | 80,755,759 |
| Married couple, w/children | 31.4% | 26.5% | 30.5% |
| Married couple, no children | 54.5% | 56.0% | 42.9% |
| Non Family Households | 1,275 | 2,867 | 43,255,233 |
| Single householder, w/children | 8.0% | 7.5% | 15.8% |
| Single householder, no children | 6.1% | 10.0% | 10.8% |