| | Dudley, MA | Olyphant, PA | United States |
| Population | 11,890 | 5,359 | 329,725,481 |
| Female Population | 52.0% | 54.1% | 50.5% |
| Male Population | 48.0% | 45.9% | 49.5% |
| Median Age | 41.2 | 41.7 | 38.4 |
| space3 | | | |
| Population - 2010 | 11,462 | 5,160 | 309,327,143 |
| Population - 2000 | 10,036 | 4,978 | 285,036,114 |
| Population - 1990 | 9,540 | 5,222 | 251,960,433 |
| Pop. 2000 to Now | 16.2% | 0.6% | 15.6% |
| Pop. 1990 to Now | 22.3% | -4.1% | 30.8% |
| space4 | | | |
| Population Density | 571.2 | 985.7 | 93.4 |
| Land Area | 20.8 | 5.4 | 3,531,905.4 |
| Water Area | 1.0 | 0.1 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Dudley, MA | Olyphant, PA | United States |
| Age 0 to 4 | 1.6% | 2.5% | 5.9% |
| Age 5 to 9 | 5.6% | 5.0% | 6.1% |
| Age 10 to 14 | 8.3% | 8.9% | 6.6% |
| Age 15 to 17 | 4.5% | 7.0% | 3.9% |
| Age 18 to 20 | 11.1% | 3.1% | 4.0% |
| Age 21 to 24 | 6.2% | 5.2% | 5.2% |
| Age 25 to 34 | 7.7% | 8.1% | 13.8% |
| Age 35 to 44 | 10.1% | 15.5% | 12.9% |
| Age 45 to 54 | 16.5% | 16.4% | 12.6% |
| Age 55 to 59 | 5.8% | 5.7% | 6.7% |
| Age 60 to 64 | 6.7% | 5.0% | 6.3% |
| Age 65 to 74 | 8.9% | 9.1% | 9.6% |
| Age 75 to 84 | 4.1% | 4.4% | 4.5% |
| Age 85 and over | 3.1% | 4.0% | 1.9% |
| space1 | | | |
| Race | | | |
| | Dudley, MA | Olyphant, PA | United States |
| White | 87.7% | 87.9% | 59.4% |
| Black | 3.2% | 0.0% | 12.2% |
| Asian | 3.5% | 0.2% | 5.6% |
| Native American | 0.0% | 0.0% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.5% | 0.0% | 0.4% |
| Two or More Races | 1.9% | 1.5% | 3.2% |
| Hispanic | 3.2% | 10.4% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Dudley, MA | Olyphant, PA | United States |
| Married Population | 43.9% | 42.7% | 49.8% |
| Currently Married | 43.3% | 41.7% | 48.0% |
| Married but Separated | 0.7% | 0.9% | 1.8% |
| Single Population | 56.1% | 57.4% | 50.2% |
| Never Married | 38.0% | 39.4% | 33.8% |
| Divorced | 11.2% | 10.4% | 10.8% |
| Widowed | 6.9% | 7.5% | 5.6% |
| space5 | | | |
| Household Size | 2.55 | 2.36 | 2.60 |
| Households | 4,199 | 2,267 | 124,010,992 |
| Family Households | 2,728 | 1,483 | 80,755,759 |
| Married couple, w/children | 34.6% | 18.3% | 30.5% |
| Married couple, no children | 41.5% | 39.1% | 42.9% |
| Non Family Households | 1,471 | 784 | 43,255,233 |
| Single householder, w/children | 15.5% | 28.6% | 15.8% |
| Single householder, no children | 8.4% | 14.0% | 10.8% |