| | North Druid Hills, GA | Truckee, CA | United States |
| Population | 18,143 | 16,850 | 329,725,481 |
| Female Population | 53.8% | 49.7% | 50.5% |
| Male Population | 46.2% | 50.3% | 49.5% |
| Median Age | 32.8 | 41.9 | 38.4 |
| space3 | | | |
| Population - 2010 | 18,360 | 16,167 | 309,327,143 |
| Population - 2000 | 18,852 | 13,864 | 285,036,114 |
| Population - 1990 | 14,170 | 3,484 | 251,960,433 |
| Pop. 2000 to Now | 0.6% | 22.5% | 15.6% |
| Pop. 1990 to Now | 33.8% | 387.4% | 30.8% |
| space4 | | | |
| Population Density | 3,992.7 | 521.2 | 93.4 |
| Land Area | 4.5 | 32.3 | 3,531,905.4 |
| Water Area | 0.0 | 1.3 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | North Druid Hills, GA | Truckee, CA | United States |
| Age 0 to 4 | 6.7% | 7.0% | 5.9% |
| Age 5 to 9 | 3.1% | 6.0% | 6.1% |
| Age 10 to 14 | 3.6% | 6.0% | 6.6% |
| Age 15 to 17 | 2.0% | 3.2% | 3.9% |
| Age 18 to 20 | 2.7% | 1.8% | 4.0% |
| Age 21 to 24 | 8.9% | 3.4% | 5.2% |
| Age 25 to 34 | 26.4% | 12.0% | 13.8% |
| Age 35 to 44 | 13.7% | 14.9% | 12.9% |
| Age 45 to 54 | 10.7% | 14.6% | 12.6% |
| Age 55 to 59 | 5.0% | 7.3% | 6.7% |
| Age 60 to 64 | 3.4% | 7.9% | 6.3% |
| Age 65 to 74 | 7.6% | 11.5% | 9.6% |
| Age 75 to 84 | 4.0% | 3.5% | 4.5% |
| Age 85 and over | 2.3% | 0.8% | 1.9% |
| space1 | | | |
| Race | | | |
| | North Druid Hills, GA | Truckee, CA | United States |
| White | 59.6% | 83.1% | 59.4% |
| Black | 18.7% | 0.0% | 12.2% |
| Asian | 11.6% | 1.0% | 5.6% |
| Native American | 0.0% | 0.0% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.4% | 0.2% |
| Other | 0.3% | 0.0% | 0.4% |
| Two or More Races | 3.0% | 2.1% | 3.2% |
| Hispanic | 6.9% | 13.5% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | North Druid Hills, GA | Truckee, CA | United States |
| Married Population | 35.1% | 59.3% | 49.8% |
| Currently Married | 34.5% | 58.7% | 48.0% |
| Married but Separated | 0.5% | 0.6% | 1.8% |
| Single Population | 64.9% | 40.7% | 50.2% |
| Never Married | 50.5% | 29.3% | 33.8% |
| Divorced | 10.3% | 8.9% | 10.8% |
| Widowed | 4.1% | 2.4% | 5.6% |
| space5 | | | |
| Household Size | 2.10 | 2.70 | 2.60 |
| Households | 8,472 | 6,247 | 124,010,992 |
| Family Households | 3,245 | 4,320 | 80,755,759 |
| Married couple, w/children | 30.9% | 35.6% | 30.5% |
| Married couple, no children | 44.8% | 50.8% | 42.9% |
| Non Family Households | 5,227 | 1,927 | 43,255,233 |
| Single householder, w/children | 11.1% | 11.2% | 15.8% |
| Single householder, no children | 13.2% | 2.5% | 10.8% |