| | Holly Springs, GA | Jonesborough, TN | United States |
| Population | 15,784 | 5,747 | 329,725,481 |
| Female Population | 50.1% | 48.4% | 50.5% |
| Male Population | 49.9% | 51.6% | 49.5% |
| Median Age | 39.5 | 46.8 | 38.4 |
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| Population - 2010 | 9,383 | 5,069 | 309,327,143 |
| Population - 2000 | 3,195 | 4,168 | 285,036,114 |
| Population - 1990 | 2,406 | 3,091 | 251,960,433 |
| Pop. 2000 to Now | 416.6% | 38.3% | 15.6% |
| Pop. 1990 to Now | 586.0% | 86.5% | 30.8% |
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| Population Density | 2,269.5 | 1,116.1 | 93.4 |
| Land Area | 7.0 | 5.1 | 3,531,905.4 |
| Water Area | 0.1 | 0.0 | 264,836.8 |
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| Est. Total Population By Age | | | |
| | Holly Springs, GA | Jonesborough, TN | United States |
| Age 0 to 4 | 6.3% | 1.0% | 5.9% |
| Age 5 to 9 | 7.6% | 5.4% | 6.1% |
| Age 10 to 14 | 10.3% | 5.6% | 6.6% |
| Age 15 to 17 | 3.8% | 3.6% | 3.9% |
| Age 18 to 20 | 2.8% | 0.6% | 4.0% |
| Age 21 to 24 | 4.0% | 2.7% | 5.2% |
| Age 25 to 34 | 9.9% | 18.9% | 13.8% |
| Age 35 to 44 | 19.5% | 8.9% | 12.9% |
| Age 45 to 54 | 16.8% | 11.3% | 12.6% |
| Age 55 to 59 | 2.6% | 8.1% | 6.7% |
| Age 60 to 64 | 3.8% | 6.8% | 6.3% |
| Age 65 to 74 | 9.2% | 14.9% | 9.6% |
| Age 75 to 84 | 3.0% | 10.1% | 4.5% |
| Age 85 and over | 0.4% | 2.1% | 1.9% |
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| Race | | | |
| | Holly Springs, GA | Jonesborough, TN | United States |
| White | 75.8% | 88.2% | 59.4% |
| Black | 11.6% | 3.3% | 12.2% |
| Asian | 2.8% | 5.0% | 5.6% |
| Native American | 0.0% | 0.0% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 1.4% | 0.3% | 0.4% |
| Two or More Races | 1.9% | 1.1% | 3.2% |
| Hispanic | 6.6% | 2.0% | 18.4% |
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| Marriage & Family | | | |
| | Holly Springs, GA | Jonesborough, TN | United States |
| Married Population | 64.1% | 52.1% | 49.8% |
| Currently Married | 63.0% | 49.9% | 48.0% |
| Married but Separated | 1.1% | 2.2% | 1.8% |
| Single Population | 35.9% | 47.9% | 50.2% |
| Never Married | 22.4% | 22.2% | 33.8% |
| Divorced | 10.1% | 17.6% | 10.8% |
| Widowed | 3.4% | 8.1% | 5.6% |
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| Household Size | 2.79 | 2.20 | 2.60 |
| Households | 5,661 | 2,285 | 124,010,992 |
| Family Households | 4,336 | 1,483 | 80,755,759 |
| Married couple, w/children | 54.8% | 24.9% | 30.5% |
| Married couple, no children | 33.3% | 55.5% | 42.9% |
| Non Family Households | 1,325 | 802 | 43,255,233 |
| Single householder, w/children | 8.9% | 9.4% | 15.8% |
| Single householder, no children | 3.0% | 10.2% | 10.8% |