| | Morrisville, NC | Davidson, NC | United States |
| Population | 28,824 | 14,644 | 329,725,481 |
| Female Population | 49.7% | 52.3% | 50.5% |
| Male Population | 50.3% | 47.7% | 49.5% |
| Median Age | 34.1 | 39.5 | 38.4 |
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| Population - 2010 | 18,748 | 10,911 | 309,327,143 |
| Population - 2000 | 5,208 | 7,139 | 285,036,114 |
| Population - 1990 | 1,022 | 4,046 | 251,960,433 |
| Pop. 2000 to Now | 485.5% | 84.9% | 15.6% |
| Pop. 1990 to Now | 2,883.9% | 226.3% | 30.8% |
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| Population Density | 3,321.1 | 2,532.7 | 93.4 |
| Land Area | 8.7 | 5.8 | 3,531,905.4 |
| Water Area | 0.1 | 0.3 | 264,836.8 |
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| Est. Total Population By Age | | | |
| | Morrisville, NC | Davidson, NC | United States |
| Age 0 to 4 | 7.5% | 3.6% | 5.9% |
| Age 5 to 9 | 6.9% | 7.3% | 6.1% |
| Age 10 to 14 | 6.0% | 7.2% | 6.6% |
| Age 15 to 17 | 3.7% | 4.0% | 3.9% |
| Age 18 to 20 | 2.7% | 11.7% | 4.0% |
| Age 21 to 24 | 4.8% | 4.4% | 5.2% |
| Age 25 to 34 | 20.7% | 5.9% | 13.8% |
| Age 35 to 44 | 18.5% | 11.3% | 12.9% |
| Age 45 to 54 | 13.2% | 14.8% | 12.6% |
| Age 55 to 59 | 3.7% | 7.6% | 6.7% |
| Age 60 to 64 | 5.6% | 6.4% | 6.3% |
| Age 65 to 74 | 4.0% | 9.4% | 9.6% |
| Age 75 to 84 | 0.8% | 5.0% | 4.5% |
| Age 85 and over | 1.9% | 1.4% | 1.9% |
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| Race | | | |
| | Morrisville, NC | Davidson, NC | United States |
| White | 37.4% | 83.7% | 59.4% |
| Black | 12.2% | 7.6% | 12.2% |
| Asian | 40.9% | 1.8% | 5.6% |
| Native American | 0.0% | 0.0% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 1.3% | 0.1% | 0.4% |
| Two or More Races | 4.4% | 3.4% | 3.2% |
| Hispanic | 3.8% | 3.4% | 18.4% |
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| Marriage & Family | | | |
| | Morrisville, NC | Davidson, NC | United States |
| Married Population | 59.4% | 57.2% | 49.8% |
| Currently Married | 57.7% | 56.2% | 48.0% |
| Married but Separated | 1.7% | 1.0% | 1.8% |
| Single Population | 40.6% | 42.8% | 50.2% |
| Never Married | 29.0% | 32.1% | 33.8% |
| Divorced | 7.7% | 9.1% | 10.8% |
| Widowed | 3.9% | 1.7% | 5.6% |
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| Household Size | 2.66 | 2.46 | 2.60 |
| Households | 10,819 | 5,292 | 124,010,992 |
| Family Households | 7,254 | 3,791 | 80,755,759 |
| Married couple, w/children | 51.4% | 38.4% | 30.5% |
| Married couple, no children | 34.7% | 47.8% | 42.9% |
| Non Family Households | 3,565 | 1,501 | 43,255,233 |
| Single householder, w/children | 6.1% | 7.2% | 15.8% |
| Single householder, no children | 7.8% | 6.6% | 10.8% |