| | Donora, PA | Manchester, MI | United States |
| Population | 4,570 | 2,283 | 329,725,481 |
| Female Population | 54.2% | 50.8% | 50.5% |
| Male Population | 45.8% | 49.2% | 49.5% |
| Median Age | 46.1 | 47.3 | 38.4 |
| space3 | | | |
| Population - 2010 | 4,778 | 2,090 | 309,327,143 |
| Population - 2000 | 5,653 | 2,160 | 285,036,114 |
| Population - 1990 | 5,928 | 1,753 | 251,960,433 |
| Pop. 2000 to Now | -19.6% | -0.7% | 15.6% |
| Pop. 1990 to Now | -23.3% | 22.3% | 30.8% |
| space4 | | | |
| Population Density | 2,406.5 | 1,070.3 | 93.4 |
| Land Area | 1.9 | 2.1 | 3,531,905.4 |
| Water Area | 0.1 | 0.1 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Donora, PA | Manchester, MI | United States |
| Age 0 to 4 | 6.5% | 4.2% | 5.9% |
| Age 5 to 9 | 11.8% | 4.1% | 6.1% |
| Age 10 to 14 | 1.9% | 4.8% | 6.6% |
| Age 15 to 17 | 3.0% | 3.6% | 3.9% |
| Age 18 to 20 | 1.9% | 3.5% | 4.0% |
| Age 21 to 24 | 1.2% | 3.0% | 5.2% |
| Age 25 to 34 | 15.6% | 14.8% | 13.8% |
| Age 35 to 44 | 7.0% | 6.8% | 12.9% |
| Age 45 to 54 | 15.9% | 14.9% | 12.6% |
| Age 55 to 59 | 9.8% | 9.3% | 6.7% |
| Age 60 to 64 | 10.0% | 6.3% | 6.3% |
| Age 65 to 74 | 9.7% | 18.4% | 9.6% |
| Age 75 to 84 | 3.8% | 4.2% | 4.5% |
| Age 85 and over | 1.7% | 2.1% | 1.9% |
| space1 | | | |
| Race | | | |
| | Donora, PA | Manchester, MI | United States |
| White | 68.2% | 87.7% | 59.4% |
| Black | 24.2% | 0.6% | 12.2% |
| Asian | 0.0% | 0.0% | 5.6% |
| Native American | 0.0% | 0.1% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 4.4% | 0.4% |
| Two or More Races | 3.6% | 1.8% | 3.2% |
| Hispanic | 3.9% | 5.4% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Donora, PA | Manchester, MI | United States |
| Married Population | 37.3% | 52.6% | 49.8% |
| Currently Married | 34.9% | 52.6% | 48.0% |
| Married but Separated | 2.4% | 0.1% | 1.8% |
| Single Population | 62.7% | 47.4% | 50.2% |
| Never Married | 40.3% | 30.3% | 33.8% |
| Divorced | 12.5% | 10.9% | 10.8% |
| Widowed | 9.9% | 6.1% | 5.6% |
| space5 | | | |
| Household Size | 2.00 | 2.09 | 2.60 |
| Households | 2,240 | 1,088 | 124,010,992 |
| Family Households | 1,283 | 657 | 80,755,759 |
| Married couple, w/children | 10.8% | 19.5% | 30.5% |
| Married couple, no children | 41.7% | 58.0% | 42.9% |
| Non Family Households | 957 | 431 | 43,255,233 |
| Single householder, w/children | 29.3% | 16.7% | 15.8% |
| Single householder, no children | 18.2% | 5.8% | 10.8% |