| | Duffield, VA | Garden City, MI | United States |
| Population | 60 | 27,268 | 329,725,481 |
| Female Population | 65.0% | 51.7% | 50.5% |
| Male Population | 35.0% | 48.3% | 49.5% |
| Median Age | 51 | 41.4 | 38.4 |
| space3 | | | |
| Population - 2010 | 90 | 27,572 | 309,327,143 |
| Population - 2000 | 62 | 30,047 | 285,036,114 |
| Population - 1990 | 54 | 31,846 | 251,960,433 |
| Pop. 2000 to Now | 33.9% | -12.8% | 15.6% |
| Pop. 1990 to Now | 53.7% | -17.7% | 30.8% |
| space4 | | | |
| Population Density | 97.7 | 4,650.9 | 93.4 |
| Land Area | 0.6 | 5.9 | 3,531,905.4 |
| Water Area | 0.0 | 0.0 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Duffield, VA | Garden City, MI | United States |
| Age 0 to 4 | 3.3% | 7.0% | 5.9% |
| Age 5 to 9 | 3.3% | 6.0% | 6.1% |
| Age 10 to 14 | 0.0% | 4.0% | 6.6% |
| Age 15 to 17 | 3.3% | 2.8% | 3.9% |
| Age 18 to 20 | 0.0% | 3.5% | 4.0% |
| Age 21 to 24 | 3.3% | 4.5% | 5.2% |
| Age 25 to 34 | 11.7% | 13.6% | 13.8% |
| Age 35 to 44 | 11.7% | 12.0% | 12.9% |
| Age 45 to 54 | 20.0% | 16.6% | 12.6% |
| Age 55 to 59 | 3.3% | 7.2% | 6.7% |
| Age 60 to 64 | 5.0% | 7.3% | 6.3% |
| Age 65 to 74 | 18.3% | 9.9% | 9.6% |
| Age 75 to 84 | 13.3% | 3.4% | 4.5% |
| Age 85 and over | 3.3% | 2.1% | 1.9% |
| space1 | | | |
| Race | | | |
| | Duffield, VA | Garden City, MI | United States |
| White | 96.7% | 85.6% | 59.4% |
| Black | 0.0% | 5.0% | 12.2% |
| Asian | 0.0% | 1.2% | 5.6% |
| Native American | 0.0% | 0.1% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 0.0% | 0.4% |
| Two or More Races | 3.3% | 3.6% | 3.2% |
| Hispanic | 0.0% | 4.5% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Duffield, VA | Garden City, MI | United States |
| Married Population | 44.6% | 47.3% | 49.8% |
| Currently Married | 44.6% | 46.0% | 48.0% |
| Married but Separated | 0.0% | 1.3% | 1.8% |
| Single Population | 55.4% | 52.7% | 50.2% |
| Never Married | 23.2% | 33.2% | 33.8% |
| Divorced | 12.5% | 12.7% | 10.8% |
| Widowed | 19.6% | 6.8% | 5.6% |
| space5 | | | |
| Household Size | 2.14 | 2.48 | 2.60 |
| Households | 28 | 10,979 | 124,010,992 |
| Family Households | 16 | 7,217 | 80,755,759 |
| Married couple, w/children | 18.8% | 26.3% | 30.5% |
| Married couple, no children | 56.3% | 41.8% | 42.9% |
| Non Family Households | 12 | 3,762 | 43,255,233 |
| Single householder, w/children | 12.5% | 16.0% | 15.8% |
| Single householder, no children | 12.5% | 15.9% | 10.8% |