| | St. James, NC | Murraysville, NC | United States |
| Population | 6,199 | 15,976 | 329,725,481 |
| Female Population | 51.6% | 50.3% | 50.5% |
| Male Population | 48.4% | 49.7% | 49.5% |
| Median Age | 67.7 | 36.6 | 38.4 |
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| Population - 2010 | 3,196 | 13,293 | 309,327,143 |
| Population - 2000 | 804 | 7,279 | 285,036,114 |
| Population - 1990 | 402 | 2,507 | 251,960,433 |
| Pop. 2000 to Now | 721.8% | 123.7% | 15.6% |
| Pop. 1990 to Now | 1,543.5% | 549.4% | 30.8% |
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| Population Density | 680.5 | 1,854.4 | 93.4 |
| Land Area | 9.1 | 8.6 | 3,531,905.4 |
| Water Area | 0.1 | 0.1 | 264,836.8 |
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| Est. Total Population By Age | | | |
| | St. James, NC | Murraysville, NC | United States |
| Age 0 to 4 | 0.0% | 5.5% | 5.9% |
| Age 5 to 9 | 1.3% | 4.9% | 6.1% |
| Age 10 to 14 | 0.8% | 5.3% | 6.6% |
| Age 15 to 17 | 0.3% | 5.2% | 3.9% |
| Age 18 to 20 | 0.0% | 2.5% | 4.0% |
| Age 21 to 24 | 0.3% | 10.8% | 5.2% |
| Age 25 to 34 | 0.5% | 13.7% | 13.8% |
| Age 35 to 44 | 3.3% | 14.9% | 12.9% |
| Age 45 to 54 | 5.1% | 16.0% | 12.6% |
| Age 55 to 59 | 9.3% | 5.5% | 6.7% |
| Age 60 to 64 | 17.2% | 4.9% | 6.3% |
| Age 65 to 74 | 43.6% | 7.1% | 9.6% |
| Age 75 to 84 | 16.7% | 3.1% | 4.5% |
| Age 85 and over | 1.5% | 0.6% | 1.9% |
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| Race | | | |
| | St. James, NC | Murraysville, NC | United States |
| White | 93.6% | 74.6% | 59.4% |
| Black | 0.4% | 10.0% | 12.2% |
| Asian | 0.4% | 1.7% | 5.6% |
| Native American | 0.0% | 0.1% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 0.0% | 0.4% |
| Two or More Races | 1.6% | 5.2% | 3.2% |
| Hispanic | 4.0% | 8.5% | 18.4% |
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| Marriage & Family | | | |
| | St. James, NC | Murraysville, NC | United States |
| Married Population | 85.4% | 51.8% | 49.8% |
| Currently Married | 85.4% | 50.6% | 48.0% |
| Married but Separated | 0.0% | 1.3% | 1.8% |
| Single Population | 14.6% | 48.2% | 50.2% |
| Never Married | 7.6% | 32.4% | 33.8% |
| Divorced | 3.0% | 11.7% | 10.8% |
| Widowed | 4.0% | 4.1% | 5.6% |
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| Household Size | 2.01 | 2.29 | 2.60 |
| Households | 3,082 | 6,979 | 124,010,992 |
| Family Households | 2,565 | 4,108 | 80,755,759 |
| Married couple, w/children | 3.0% | 35.5% | 30.5% |
| Married couple, no children | 95.3% | 39.2% | 42.9% |
| Non Family Households | 517 | 2,871 | 43,255,233 |
| Single householder, w/children | 0.0% | 16.7% | 15.8% |
| Single householder, no children | 1.7% | 8.6% | 10.8% |