| Statistic | Mechanicsville | Atlanta | Georgia |
| Population | 4,221 | 497,642 | 10,617,423 |
| Population density (sq mi) | 4,265 | 3,678 | 187 |
| Median age | 29.7 | 33.2 | 36.2 |
| Male/Female ratio | 0.7:1 | 1.0:1 | 1.0:1 |
| Married (15yrs & older) | n/a | 34% | 54% |
| Families w/ Kids under 18 | 73% | 40% | 45% |
| Speak English | n/a | 90% | 86% |
| Speak Spanish | n/a | 4% | 8% |
| Race | Mechanicsville | Atlanta | Georgia |
| White | 5.99% | 40.42% | 59.80% |
| Black | 87.64% | 49.79% | 31.17% |
| Asian | 0.00% | 4.80% | 3.70% |
| American Indian | 0.14% | 0.38% | 0.29% |
| Native Hawaiian | 0.00% | 0.04% | 0.05% |
| Mixed race | 5.96% | 3.18% | 2.20% |
| Other race | 0.27% | 1.40% | 2.79% |
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