| | Wilmington, NC | Manchester, NH | United States |
| Population | 115,976 | 114,730 | 329,725,481 |
| Female Population | 53.7% | 49.7% | 50.5% |
| Male Population | 46.3% | 50.3% | 49.5% |
| Median Age | 37.4 | 36.9 | 38.4 |
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| Population - 2010 | 106,769 | 109,608 | 309,327,143 |
| Population - 2000 | 75,838 | 107,006 | 285,036,114 |
| Population - 1990 | 55,530 | 99,567 | 251,960,433 |
| Pop. 2000 to Now | 64.6% | 5.2% | 15.6% |
| Pop. 1990 to Now | 124.7% | 13.0% | 30.8% |
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| Population Density | 2,244.6 | 3,468.8 | 93.4 |
| Land Area | 51.7 | 33.1 | 3,531,905.4 |
| Water Area | 1.5 | 1.9 | 264,836.8 |
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| Est. Total Population By Age | | | |
| | Wilmington, NC | Manchester, NH | United States |
| Age 0 to 4 | 4.2% | 5.5% | 5.9% |
| Age 5 to 9 | 4.8% | 5.2% | 6.1% |
| Age 10 to 14 | 5.1% | 5.1% | 6.6% |
| Age 15 to 17 | 2.9% | 3.1% | 3.9% |
| Age 18 to 20 | 7.9% | 3.3% | 4.0% |
| Age 21 to 24 | 8.2% | 6.2% | 5.2% |
| Age 25 to 34 | 14.1% | 18.6% | 13.8% |
| Age 35 to 44 | 11.6% | 13.5% | 12.9% |
| Age 45 to 54 | 10.9% | 12.3% | 12.6% |
| Age 55 to 59 | 6.5% | 6.6% | 6.7% |
| Age 60 to 64 | 6.4% | 6.8% | 6.3% |
| Age 65 to 74 | 10.1% | 7.5% | 9.6% |
| Age 75 to 84 | 4.9% | 4.3% | 4.5% |
| Age 85 and over | 2.5% | 2.1% | 1.9% |
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| Race | | | |
| | Wilmington, NC | Manchester, NH | United States |
| White | 70.9% | 74.9% | 59.4% |
| Black | 17.0% | 5.3% | 12.2% |
| Asian | 1.2% | 4.9% | 5.6% |
| Native American | 0.2% | 0.1% | 0.6% |
| Hawaiian, Pacific Islander | 0.2% | 0.0% | 0.2% |
| Other | 0.5% | 0.4% | 0.4% |
| Two or More Races | 2.9% | 3.5% | 3.2% |
| Hispanic | 7.1% | 11.0% | 18.4% |
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| Marriage & Family | | | |
| | Wilmington, NC | Manchester, NH | United States |
| Married Population | 41.3% | 41.1% | 49.8% |
| Currently Married | 39.1% | 39.2% | 48.0% |
| Married but Separated | 2.2% | 1.8% | 1.8% |
| Single Population | 58.7% | 58.9% | 50.2% |
| Never Married | 41.6% | 39.2% | 33.8% |
| Divorced | 11.7% | 14.3% | 10.8% |
| Widowed | 5.3% | 5.4% | 5.6% |
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| Household Size | 2.10 | 2.32 | 2.60 |
| Households | 52,656 | 48,414 | 124,010,992 |
| Family Households | 24,715 | 25,967 | 80,755,759 |
| Married couple, w/children | 24.0% | 24.5% | 30.5% |
| Married couple, no children | 50.5% | 43.8% | 42.9% |
| Non Family Households | 27,941 | 22,447 | 43,255,233 |
| Single householder, w/children | 15.1% | 20.2% | 15.8% |
| Single householder, no children | 10.4% | 11.6% | 10.8% |