| | East Manchester, PA | Wauwatosa, WI | United States |
| Population | 8,220 | 48,072 | 329,725,481 |
| Female Population | 50.9% | 52.6% | 50.5% |
| Male Population | 49.2% | 47.4% | 49.5% |
| Median Age | 43.2 | 38.4 | 38.4 |
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| Population - 2010 | 7,233 | 46,436 | 309,327,143 |
| Population - 2000 | 5,078 | 47,271 | 285,036,114 |
| Population - 1990 | 3,714 | 49,366 | 251,960,433 |
| Pop. 2000 to Now | 54.7% | 1.7% | 15.6% |
| Pop. 1990 to Now | 111.4% | -2.6% | 30.8% |
| space4 | | | |
| Population Density | 493.8 | 3,634.4 | 93.4 |
| Land Area | 16.6 | 13.2 | 3,531,905.4 |
| Water Area | 0.5 | 0.0 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | East Manchester, PA | Wauwatosa, WI | United States |
| Age 0 to 4 | 5.1% | 6.1% | 5.9% |
| Age 5 to 9 | 6.4% | 6.4% | 6.1% |
| Age 10 to 14 | 6.0% | 5.6% | 6.6% |
| Age 15 to 17 | 4.1% | 4.1% | 3.9% |
| Age 18 to 20 | 2.1% | 2.4% | 4.0% |
| Age 21 to 24 | 2.4% | 3.3% | 5.2% |
| Age 25 to 34 | 14.4% | 16.8% | 13.8% |
| Age 35 to 44 | 11.7% | 14.1% | 12.9% |
| Age 45 to 54 | 16.3% | 12.3% | 12.6% |
| Age 55 to 59 | 5.9% | 6.1% | 6.7% |
| Age 60 to 64 | 10.6% | 5.6% | 6.3% |
| Age 65 to 74 | 8.9% | 9.4% | 9.6% |
| Age 75 to 84 | 3.8% | 4.1% | 4.5% |
| Age 85 and over | 2.2% | 3.7% | 1.9% |
| space1 | | | |
| Race | | | |
| | East Manchester, PA | Wauwatosa, WI | United States |
| White | 88.2% | 80.5% | 59.4% |
| Black | 3.9% | 7.0% | 12.2% |
| Asian | 1.1% | 4.5% | 5.6% |
| Native American | 0.0% | 0.4% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 0.2% | 0.4% |
| Two or More Races | 1.9% | 3.9% | 3.2% |
| Hispanic | 5.0% | 3.4% | 18.4% |
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| Marriage & Family | | | |
| | East Manchester, PA | Wauwatosa, WI | United States |
| Married Population | 60.4% | 51.3% | 49.8% |
| Currently Married | 59.1% | 49.9% | 48.0% |
| Married but Separated | 1.3% | 1.4% | 1.8% |
| Single Population | 39.6% | 48.7% | 50.2% |
| Never Married | 27.3% | 33.3% | 33.8% |
| Divorced | 6.9% | 9.8% | 10.8% |
| Widowed | 5.5% | 5.6% | 5.6% |
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| Household Size | 2.58 | 2.27 | 2.60 |
| Households | 3,179 | 20,895 | 124,010,992 |
| Family Households | 2,469 | 12,205 | 80,755,759 |
| Married couple, w/children | 28.4% | 35.5% | 30.5% |
| Married couple, no children | 51.8% | 42.9% | 42.9% |
| Non Family Households | 710 | 8,690 | 43,255,233 |
| Single householder, w/children | 11.6% | 14.3% | 15.8% |
| Single householder, no children | 8.3% | 7.3% | 10.8% |