| | Twin Lakes, VA | Ilion, NY | United States |
| Population | 1,552 | 7,826 | 329,725,481 |
| Female Population | 49.1% | 52.8% | 50.5% |
| Male Population | 50.9% | 47.2% | 49.5% |
| Median Age | 36 | 42 | 38.4 |
| space3 | | | |
| Population - 2010 | 2,111 | 8,183 | 309,327,143 |
| Population - 2000 | 1,331 | 8,610 | 285,036,114 |
| Population - 1990 | 612 | 8,888 | 251,960,433 |
| Pop. 2000 to Now | 32.6% | -11.5% | 15.6% |
| Pop. 1990 to Now | 188.4% | -14.3% | 30.8% |
| space4 | | | |
| Population Density | 1,305.3 | 3,139.2 | 93.4 |
| Land Area | 1.2 | 2.5 | 3,531,905.4 |
| Water Area | 0.1 | 0.1 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Twin Lakes, VA | Ilion, NY | United States |
| Age 0 to 4 | 5.1% | 3.0% | 5.9% |
| Age 5 to 9 | 5.3% | 10.4% | 6.1% |
| Age 10 to 14 | 5.8% | 8.3% | 6.6% |
| Age 15 to 17 | 7.3% | 1.6% | 3.9% |
| Age 18 to 20 | 0.0% | 3.2% | 4.0% |
| Age 21 to 24 | 7.1% | 2.6% | 5.2% |
| Age 25 to 34 | 14.8% | 16.7% | 13.8% |
| Age 35 to 44 | 21.7% | 6.8% | 12.9% |
| Age 45 to 54 | 13.9% | 15.8% | 12.6% |
| Age 55 to 59 | 9.3% | 6.1% | 6.7% |
| Age 60 to 64 | 6.8% | 7.1% | 6.3% |
| Age 65 to 74 | 2.9% | 10.3% | 9.6% |
| Age 75 to 84 | 0.0% | 4.9% | 4.5% |
| Age 85 and over | 0.0% | 3.2% | 1.9% |
| space1 | | | |
| Race | | | |
| | Twin Lakes, VA | Ilion, NY | United States |
| White | 72.4% | 93.6% | 59.4% |
| Black | 10.8% | 2.0% | 12.2% |
| Asian | 11.9% | 0.6% | 5.6% |
| Native American | 0.0% | 0.0% | 0.6% |
| Hawaiian, Pacific Islander | 1.0% | 0.0% | 0.2% |
| Other | 0.0% | 0.0% | 0.4% |
| Two or More Races | 3.9% | 1.9% | 3.2% |
| Hispanic | 0.0% | 2.0% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Twin Lakes, VA | Ilion, NY | United States |
| Married Population | 58.9% | 49.8% | 49.8% |
| Currently Married | 57.7% | 47.3% | 48.0% |
| Married but Separated | 1.2% | 2.5% | 1.8% |
| Single Population | 41.1% | 50.2% | 50.2% |
| Never Married | 23.5% | 30.1% | 33.8% |
| Divorced | 16.7% | 13.3% | 10.8% |
| Widowed | 0.9% | 6.8% | 5.6% |
| space5 | | | |
| Household Size | 2.76 | 2.42 | 2.60 |
| Households | 562 | 3,177 | 124,010,992 |
| Family Households | 478 | 1,913 | 80,755,759 |
| Married couple, w/children | 34.5% | 24.7% | 30.5% |
| Married couple, no children | 40.4% | 48.2% | 42.9% |
| Non Family Households | 84 | 1,264 | 43,255,233 |
| Single householder, w/children | 16.5% | 13.7% | 15.8% |
| Single householder, no children | 8.6% | 13.3% | 10.8% |