| | Pennsburg, PA | Cynthiana, KY | United States |
| Population | 3,866 | 6,291 | 329,725,481 |
| Female Population | 52.0% | 54.3% | 50.5% |
| Male Population | 48.0% | 45.7% | 49.5% |
| Median Age | 37.8 | 39.3 | 38.4 |
| space3 | | | |
| Population - 2010 | 3,848 | 6,357 | 309,327,143 |
| Population - 2000 | 2,732 | 6,258 | 285,036,114 |
| Population - 1990 | 2,460 | 6,497 | 251,960,433 |
| Pop. 2000 to Now | 41.0% | 0.7% | 15.6% |
| Pop. 1990 to Now | 56.6% | -3.0% | 30.8% |
| space4 | | | |
| Population Density | 4,832.5 | 1,517.0 | 93.4 |
| Land Area | 0.8 | 4.1 | 3,531,905.4 |
| Water Area | 0.0 | 0.0 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Pennsburg, PA | Cynthiana, KY | United States |
| Age 0 to 4 | 5.8% | 7.9% | 5.9% |
| Age 5 to 9 | 6.5% | 4.4% | 6.1% |
| Age 10 to 14 | 4.0% | 6.8% | 6.6% |
| Age 15 to 17 | 4.0% | 4.9% | 3.9% |
| Age 18 to 20 | 4.6% | 3.0% | 4.0% |
| Age 21 to 24 | 5.1% | 6.6% | 5.2% |
| Age 25 to 34 | 15.8% | 12.8% | 13.8% |
| Age 35 to 44 | 9.8% | 8.7% | 12.9% |
| Age 45 to 54 | 14.3% | 12.4% | 12.6% |
| Age 55 to 59 | 13.2% | 6.2% | 6.7% |
| Age 60 to 64 | 4.6% | 9.5% | 6.3% |
| Age 65 to 74 | 7.1% | 8.8% | 9.6% |
| Age 75 to 84 | 4.7% | 5.1% | 4.5% |
| Age 85 and over | 0.6% | 2.7% | 1.9% |
| space1 | | | |
| Race | | | |
| | Pennsburg, PA | Cynthiana, KY | United States |
| White | 89.9% | 91.3% | 59.4% |
| Black | 1.6% | 2.2% | 12.2% |
| Asian | 1.3% | 0.0% | 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 | 2.1% | 3.6% | 3.2% |
| Hispanic | 5.1% | 3.0% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Pennsburg, PA | Cynthiana, KY | United States |
| Married Population | 52.2% | 45.8% | 49.8% |
| Currently Married | 51.5% | 42.6% | 48.0% |
| Married but Separated | 0.7% | 3.1% | 1.8% |
| Single Population | 47.8% | 54.2% | 50.2% |
| Never Married | 31.1% | 31.4% | 33.8% |
| Divorced | 10.4% | 16.1% | 10.8% |
| Widowed | 6.3% | 6.7% | 5.6% |
| space5 | | | |
| Household Size | 2.59 | 2.44 | 2.60 |
| Households | 1,394 | 2,482 | 124,010,992 |
| Family Households | 1,014 | 1,618 | 80,755,759 |
| Married couple, w/children | 29.5% | 26.0% | 30.5% |
| Married couple, no children | 42.4% | 38.8% | 42.9% |
| Non Family Households | 380 | 864 | 43,255,233 |
| Single householder, w/children | 15.3% | 23.9% | 15.8% |
| Single householder, no children | 12.8% | 11.4% | 10.8% |