| | Dallas, GA | Havre de Grace, MD | United States |
| Population | 13,704 | 14,625 | 329,725,481 |
| Female Population | 57.2% | 54.5% | 50.5% |
| Male Population | 42.8% | 45.6% | 49.5% |
| Median Age | 32.9 | 45.1 | 38.4 |
| space3 | | | |
| Population - 2010 | 11,577 | 13,039 | 309,327,143 |
| Population - 2000 | 5,056 | 11,331 | 285,036,114 |
| Population - 1990 | 2,810 | 8,952 | 251,960,433 |
| Pop. 2000 to Now | 184.6% | 24.9% | 15.6% |
| Pop. 1990 to Now | 412.0% | 58.0% | 30.8% |
| space4 | | | |
| Population Density | 1,856.7 | 2,500.4 | 93.4 |
| Land Area | 7.4 | 5.8 | 3,531,905.4 |
| Water Area | 0.0 | 0.4 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Dallas, GA | Havre de Grace, MD | United States |
| Age 0 to 4 | 12.1% | 4.4% | 5.9% |
| Age 5 to 9 | 3.2% | 3.9% | 6.1% |
| Age 10 to 14 | 7.1% | 6.2% | 6.6% |
| Age 15 to 17 | 6.1% | 4.0% | 3.9% |
| Age 18 to 20 | 4.3% | 3.6% | 4.0% |
| Age 21 to 24 | 7.3% | 4.1% | 5.2% |
| Age 25 to 34 | 13.6% | 13.5% | 13.8% |
| Age 35 to 44 | 13.7% | 10.3% | 12.9% |
| Age 45 to 54 | 15.9% | 14.1% | 12.6% |
| Age 55 to 59 | 3.1% | 6.8% | 6.7% |
| Age 60 to 64 | 3.9% | 9.3% | 6.3% |
| Age 65 to 74 | 4.6% | 13.2% | 9.6% |
| Age 75 to 84 | 3.2% | 5.0% | 4.5% |
| Age 85 and over | 1.9% | 1.9% | 1.9% |
| space1 | | | |
| Race | | | |
| | Dallas, GA | Havre de Grace, MD | United States |
| White | 50.8% | 73.2% | 59.4% |
| Black | 29.5% | 15.0% | 12.2% |
| Asian | 1.4% | 1.8% | 5.6% |
| Native American | 0.0% | 0.1% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 1.5% | 0.4% | 0.4% |
| Two or More Races | 6.2% | 2.9% | 3.2% |
| Hispanic | 10.6% | 6.5% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Dallas, GA | Havre de Grace, MD | United States |
| Married Population | 43.7% | 50.8% | 49.8% |
| Currently Married | 43.1% | 49.5% | 48.0% |
| Married but Separated | 0.6% | 1.4% | 1.8% |
| Single Population | 56.3% | 49.2% | 50.2% |
| Never Married | 32.1% | 29.6% | 33.8% |
| Divorced | 18.7% | 11.9% | 10.8% |
| Widowed | 5.5% | 7.7% | 5.6% |
| space5 | | | |
| Household Size | 2.57 | 2.35 | 2.60 |
| Households | 5,269 | 6,170 | 124,010,992 |
| Family Households | 3,507 | 3,711 | 80,755,759 |
| Married couple, w/children | 40.5% | 25.8% | 30.5% |
| Married couple, no children | 20.7% | 53.1% | 42.9% |
| Non Family Households | 1,762 | 2,459 | 43,255,233 |
| Single householder, w/children | 33.2% | 11.3% | 15.8% |
| Single householder, no children | 5.6% | 9.8% | 10.8% |