| | Unadilla, GA | Grand Junction, TN | United States |
| Population | 2,983 | 361 | 329,725,481 |
| Female Population | 32.7% | 62.9% | 50.5% |
| Male Population | 67.3% | 37.1% | 49.5% |
| Median Age | 43.2 | 37.4 | 38.4 |
| space3 | | | |
| Population - 2010 | 3,778 | 308 | 309,327,143 |
| Population - 2000 | 2,772 | 301 | 285,036,114 |
| Population - 1990 | 1,620 | 365 | 251,960,433 |
| Pop. 2000 to Now | 26.0% | -12.0% | 15.6% |
| Pop. 1990 to Now | 115.6% | -27.4% | 30.8% |
| space4 | | | |
| Population Density | 493.6 | 304.1 | 93.4 |
| Land Area | 6.0 | 1.2 | 3,531,905.4 |
| Water Area | 0.0 | 0.0 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Unadilla, GA | Grand Junction, TN | United States |
| Age 0 to 4 | 0.6% | 6.1% | 5.9% |
| Age 5 to 9 | 1.5% | 6.9% | 6.1% |
| Age 10 to 14 | 3.0% | 7.8% | 6.6% |
| Age 15 to 17 | 2.7% | 3.3% | 3.9% |
| Age 18 to 20 | 3.1% | 2.2% | 4.0% |
| Age 21 to 24 | 4.1% | 5.8% | 5.2% |
| Age 25 to 34 | 18.7% | 16.3% | 13.8% |
| Age 35 to 44 | 21.3% | 13.9% | 12.9% |
| Age 45 to 54 | 16.0% | 7.2% | 12.6% |
| Age 55 to 59 | 5.9% | 3.3% | 6.7% |
| Age 60 to 64 | 8.6% | 10.5% | 6.3% |
| Age 65 to 74 | 7.9% | 6.9% | 9.6% |
| Age 75 to 84 | 4.8% | 8.3% | 4.5% |
| Age 85 and over | 1.7% | 1.4% | 1.9% |
| space1 | | | |
| Race | | | |
| | Unadilla, GA | Grand Junction, TN | United States |
| White | 38.2% | 42.4% | 59.4% |
| Black | 53.8% | 51.0% | 12.2% |
| Asian | 0.0% | 0.0% | 5.6% |
| Native American | 0.0% | 0.0% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 0.0% | 0.4% |
| Two or More Races | 2.2% | 6.1% | 3.2% |
| Hispanic | 5.8% | 0.6% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Unadilla, GA | Grand Junction, TN | United States |
| Married Population | 27.1% | 47.9% | 49.8% |
| Currently Married | 20.2% | 45.1% | 48.0% |
| Married but Separated | 6.9% | 2.8% | 1.8% |
| Single Population | 72.9% | 52.1% | 50.2% |
| Never Married | 50.7% | 30.1% | 33.8% |
| Divorced | 17.7% | 17.5% | 10.8% |
| Widowed | 4.5% | 4.5% | 5.6% |
| space5 | | | |
| Household Size | 2.04 | 2.28 | 2.60 |
| Households | 758 | 158 | 124,010,992 |
| Family Households | 450 | 99 | 80,755,759 |
| Married couple, w/children | 14.4% | 22.2% | 30.5% |
| Married couple, no children | 37.6% | 43.4% | 42.9% |
| Non Family Households | 308 | 59 | 43,255,233 |
| Single householder, w/children | 14.2% | 13.1% | 15.8% |
| Single householder, no children | 33.8% | 21.2% | 10.8% |