| | Elk township (Chester County), PA | Toughkenamon, PA | United States |
| Population | 1,752 | 838 | 329,725,481 |
| Female Population | 51.7% | 48.0% | 50.5% |
| Male Population | 48.4% | 52.0% | 49.5% |
| Median Age | 43.2 | 50.1 | 38.4 |
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| Population - 2010 | 1,679 | 1,420 | 309,327,143 |
| Population - 2000 | 1,485 | 1,375 | 285,036,114 |
| Population - 1990 | 1,129 | 1,273 | 251,960,433 |
| Pop. 2000 to Now | 14.9% | 12.5% | 15.6% |
| Pop. 1990 to Now | 51.1% | 21.5% | 30.8% |
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| Population Density | 174.3 | 406.2 | 93.4 |
| Land Area | 10.1 | 2.1 | 3,531,905.4 |
| Water Area | 0.1 | 0.0 | 264,836.8 |
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| Est. Total Population By Age | | | |
| | Elk township (Chester County), PA | Toughkenamon, PA | United States |
| Age 0 to 4 | 3.1% | 1.3% | 5.9% |
| Age 5 to 9 | 9.0% | 4.1% | 6.1% |
| Age 10 to 14 | 8.4% | 6.2% | 6.6% |
| Age 15 to 17 | 4.5% | 0.5% | 3.9% |
| Age 18 to 20 | 3.6% | 7.5% | 4.0% |
| Age 21 to 24 | 4.1% | 5.6% | 5.2% |
| Age 25 to 34 | 6.2% | 5.7% | 13.8% |
| Age 35 to 44 | 14.4% | 16.5% | 12.9% |
| Age 45 to 54 | 15.4% | 11.1% | 12.6% |
| Age 55 to 59 | 7.6% | 8.0% | 6.7% |
| Age 60 to 64 | 6.8% | 12.8% | 6.3% |
| Age 65 to 74 | 12.7% | 13.2% | 9.6% |
| Age 75 to 84 | 3.6% | 4.5% | 4.5% |
| Age 85 and over | 0.5% | 3.0% | 1.9% |
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| Race | | | |
| | Elk township (Chester County), PA | Toughkenamon, PA | United States |
| White | 84.1% | 50.2% | 59.4% |
| Black | 0.7% | 1.9% | 12.2% |
| Asian | 2.3% | 0.0% | 5.6% |
| Native American | 0.0% | 0.0% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 0.0% | 0.4% |
| Two or More Races | 4.5% | 0.0% | 3.2% |
| Hispanic | 8.4% | 47.9% | 18.4% |
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| Marriage & Family | | | |
| | Elk township (Chester County), PA | Toughkenamon, PA | United States |
| Married Population | 59.0% | 73.3% | 49.8% |
| Currently Married | 56.9% | 73.3% | 48.0% |
| Married but Separated | 2.2% | 0.0% | 1.8% |
| Single Population | 41.0% | 26.7% | 50.2% |
| Never Married | 23.9% | 17.7% | 33.8% |
| Divorced | 11.7% | 5.1% | 10.8% |
| Widowed | 5.3% | 3.9% | 5.6% |
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| Household Size | 2.86 | 2.71 | 2.60 |
| Households | 612 | 309 | 124,010,992 |
| Family Households | 459 | 248 | 80,755,759 |
| Married couple, w/children | 43.4% | 33.9% | 30.5% |
| Married couple, no children | 39.0% | 57.3% | 42.9% |
| Non Family Households | 153 | 61 | 43,255,233 |
| Single householder, w/children | 8.3% | 0.0% | 15.8% |
| Single householder, no children | 9.4% | 8.9% | 10.8% |