| | Mahanoy City, PA | Frackville, PA | United States |
| Population | 3,577 | 3,841 | 329,725,481 |
| Female Population | 49.6% | 49.5% | 50.5% |
| Male Population | 50.4% | 50.5% | 49.5% |
| Median Age | 37.5 | 42.2 | 38.4 |
| space3 | | | |
| Population - 2010 | 4,162 | 3,805 | 309,327,143 |
| Population - 2000 | 4,647 | 4,361 | 285,036,114 |
| Population - 1990 | 5,209 | 4,700 | 251,960,433 |
| Pop. 2000 to Now | -15.5% | -17.5% | 15.6% |
| Pop. 1990 to Now | -24.6% | -23.5% | 30.8% |
| space4 | | | |
| Population Density | 7,013.7 | 6,455.5 | 93.4 |
| Land Area | 0.5 | 0.6 | 3,531,905.4 |
| Water Area | 0.0 | 0.0 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Mahanoy City, PA | Frackville, PA | United States |
| Age 0 to 4 | 6.6% | 4.8% | 5.9% |
| Age 5 to 9 | 12.0% | 6.1% | 6.1% |
| Age 10 to 14 | 4.8% | 8.5% | 6.6% |
| Age 15 to 17 | 4.3% | 4.1% | 3.9% |
| Age 18 to 20 | 3.4% | 2.4% | 4.0% |
| Age 21 to 24 | 3.4% | 4.2% | 5.2% |
| Age 25 to 34 | 11.0% | 10.5% | 13.8% |
| Age 35 to 44 | 12.9% | 17.9% | 12.9% |
| Age 45 to 54 | 14.1% | 11.4% | 12.6% |
| Age 55 to 59 | 7.9% | 7.8% | 6.7% |
| Age 60 to 64 | 5.1% | 4.6% | 6.3% |
| Age 65 to 74 | 8.1% | 9.3% | 9.6% |
| Age 75 to 84 | 4.1% | 5.0% | 4.5% |
| Age 85 and over | 2.1% | 3.5% | 1.9% |
| space1 | | | |
| Race | | | |
| | Mahanoy City, PA | Frackville, PA | United States |
| White | 88.4% | 97.0% | 59.4% |
| Black | 0.3% | 0.3% | 12.2% |
| Asian | 1.0% | 0.3% | 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 | 2.3% | 0.9% | 3.2% |
| Hispanic | 8.1% | 1.5% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Mahanoy City, PA | Frackville, PA | United States |
| Married Population | 31.3% | 45.4% | 49.8% |
| Currently Married | 29.0% | 43.9% | 48.0% |
| Married but Separated | 2.3% | 1.5% | 1.8% |
| Single Population | 68.7% | 54.6% | 50.2% |
| Never Married | 46.7% | 38.0% | 33.8% |
| Divorced | 14.2% | 9.2% | 10.8% |
| Widowed | 7.8% | 7.4% | 5.6% |
| space5 | | | |
| Household Size | 2.57 | 2.67 | 2.60 |
| Households | 1,390 | 1,393 | 124,010,992 |
| Family Households | 750 | 967 | 80,755,759 |
| Married couple, w/children | 22.5% | 21.4% | 30.5% |
| Married couple, no children | 24.4% | 45.2% | 42.9% |
| Non Family Households | 640 | 426 | 43,255,233 |
| Single householder, w/children | 32.7% | 19.6% | 15.8% |
| Single householder, no children | 20.4% | 13.8% | 10.8% |