| | Marshall, VA | Millen, GA | United States |
| Population | 3,114 | 2,995 | 329,725,481 |
| Female Population | 43.2% | 59.3% | 50.5% |
| Male Population | 56.8% | 40.7% | 49.5% |
| Median Age | 30.8 | 48.8 | 38.4 |
| space3 | | | |
| Population - 2010 | 1,541 | 3,109 | 309,327,143 |
| Population - 2000 | 1,404 | 3,492 | 285,036,114 |
| Population - 1990 | 1,330 | 3,808 | 251,960,433 |
| Pop. 2000 to Now | 38.5% | -20.9% | 15.6% |
| Pop. 1990 to Now | 46.2% | -27.5% | 30.8% |
| space4 | | | |
| Population Density | 1,079.8 | 836.8 | 93.4 |
| Land Area | 2.9 | 3.6 | 3,531,905.4 |
| Water Area | 0.0 | 0.0 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Marshall, VA | Millen, GA | United States |
| Age 0 to 4 | 1.6% | 2.9% | 5.9% |
| Age 5 to 9 | 4.0% | 5.2% | 6.1% |
| Age 10 to 14 | 11.7% | 7.1% | 6.6% |
| Age 15 to 17 | 0.7% | 0.9% | 3.9% |
| Age 18 to 20 | 4.2% | 0.7% | 4.0% |
| Age 21 to 24 | 14.3% | 6.7% | 5.2% |
| Age 25 to 34 | 17.1% | 9.0% | 13.8% |
| Age 35 to 44 | 17.0% | 14.5% | 12.9% |
| Age 45 to 54 | 8.0% | 11.9% | 12.6% |
| Age 55 to 59 | 7.3% | 4.5% | 6.7% |
| Age 60 to 64 | 4.0% | 7.2% | 6.3% |
| Age 65 to 74 | 3.2% | 22.6% | 9.6% |
| Age 75 to 84 | 6.7% | 2.8% | 4.5% |
| Age 85 and over | 0.0% | 4.0% | 1.9% |
| space1 | | | |
| Race | | | |
| | Marshall, VA | Millen, GA | United States |
| White | 64.9% | 56.1% | 59.4% |
| Black | 10.1% | 34.7% | 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 | 2.1% | 0.0% | 3.2% |
| Hispanic | 23.0% | 9.2% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Marshall, VA | Millen, GA | United States |
| Married Population | 40.2% | 39.7% | 49.8% |
| Currently Married | 40.2% | 35.9% | 48.0% |
| Married but Separated | 0.0% | 3.8% | 1.8% |
| Single Population | 59.8% | 60.3% | 50.2% |
| Never Married | 41.0% | 19.6% | 33.8% |
| Divorced | 10.9% | 25.7% | 10.8% |
| Widowed | 7.9% | 15.0% | 5.6% |
| space5 | | | |
| Household Size | 3.88 | 2.32 | 2.60 |
| Households | 802 | 1,265 | 124,010,992 |
| Family Households | 687 | 699 | 80,755,759 |
| Married couple, w/children | 24.0% | 28.2% | 30.5% |
| Married couple, no children | 34.8% | 38.6% | 42.9% |
| Non Family Households | 115 | 566 | 43,255,233 |
| Single householder, w/children | 12.4% | 19.0% | 15.8% |
| Single householder, no children | 28.8% | 14.2% | 10.8% |