| | Brentwood, PA | Pottsville, PA | United States |
| Population | 9,999 | 13,413 | 329,725,481 |
| Female Population | 53.4% | 55.7% | 50.5% |
| Male Population | 46.6% | 44.4% | 49.5% |
| Median Age | 36.6 | 41.9 | 38.4 |
| space3 | | | |
| Population - 2010 | 9,633 | 14,313 | 309,327,143 |
| Population - 2000 | 10,466 | 15,549 | 285,036,114 |
| Population - 1990 | 10,823 | 16,603 | 251,960,433 |
| Pop. 2000 to Now | -12.1% | -13.8% | 15.6% |
| Pop. 1990 to Now | -15.0% | -19.2% | 30.8% |
| space4 | | | |
| Population Density | 6,910.2 | 3,219.6 | 93.4 |
| Land Area | 1.4 | 4.2 | 3,531,905.4 |
| Water Area | 0.0 | 0.0 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Brentwood, PA | Pottsville, PA | United States |
| Age 0 to 4 | 6.4% | 5.7% | 5.9% |
| Age 5 to 9 | 5.0% | 5.4% | 6.1% |
| Age 10 to 14 | 7.4% | 5.0% | 6.6% |
| Age 15 to 17 | 4.1% | 4.8% | 3.9% |
| Age 18 to 20 | 1.1% | 2.9% | 4.0% |
| Age 21 to 24 | 4.5% | 3.8% | 5.2% |
| Age 25 to 34 | 18.8% | 14.2% | 13.8% |
| Age 35 to 44 | 12.8% | 13.0% | 12.9% |
| Age 45 to 54 | 10.6% | 13.4% | 12.6% |
| Age 55 to 59 | 4.9% | 8.8% | 6.7% |
| Age 60 to 64 | 8.9% | 5.7% | 6.3% |
| Age 65 to 74 | 9.6% | 8.4% | 9.6% |
| Age 75 to 84 | 4.1% | 4.5% | 4.5% |
| Age 85 and over | 1.8% | 4.5% | 1.9% |
| space1 | | | |
| Race | | | |
| | Brentwood, PA | Pottsville, PA | United States |
| White | 80.8% | 91.6% | 59.4% |
| Black | 8.2% | 4.1% | 12.2% |
| Asian | 4.7% | 0.0% | 5.6% |
| Native American | 0.0% | 0.0% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.6% | 0.0% | 0.4% |
| Two or More Races | 4.8% | 0.9% | 3.2% |
| Hispanic | 0.7% | 3.5% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Brentwood, PA | Pottsville, PA | United States |
| Married Population | 38.0% | 36.7% | 49.8% |
| Currently Married | 37.2% | 33.3% | 48.0% |
| Married but Separated | 0.8% | 3.4% | 1.8% |
| Single Population | 62.0% | 63.3% | 50.2% |
| Never Married | 41.0% | 37.3% | 33.8% |
| Divorced | 12.5% | 16.0% | 10.8% |
| Widowed | 8.5% | 10.0% | 5.6% |
| space5 | | | |
| Household Size | 2.24 | 2.23 | 2.60 |
| Households | 4,468 | 5,693 | 124,010,992 |
| Family Households | 2,377 | 3,160 | 80,755,759 |
| Married couple, w/children | 18.1% | 16.9% | 30.5% |
| Married couple, no children | 44.6% | 36.0% | 42.9% |
| Non Family Households | 2,091 | 2,533 | 43,255,233 |
| Single householder, w/children | 22.8% | 28.0% | 15.8% |
| Single householder, no children | 14.5% | 19.1% | 10.8% |