| | Chalfont, PA | Bloomsburg, PA | United States |
| Population | 4,244 | 12,850 | 329,725,481 |
| Female Population | 50.1% | 57.6% | 50.5% |
| Male Population | 49.9% | 42.4% | 49.5% |
| Median Age | 42.1 | 23.8 | 38.4 |
| space3 | | | |
| Population - 2010 | 4,021 | 14,862 | 309,327,143 |
| Population - 2000 | 3,900 | 12,375 | 285,036,114 |
| Population - 1990 | 3,069 | 12,439 | 251,960,433 |
| Pop. 2000 to Now | 10.7% | 11.1% | 15.6% |
| Pop. 1990 to Now | 40.7% | 10.5% | 30.8% |
| space4 | | | |
| Population Density | 2,623.0 | 2,956.1 | 93.4 |
| Land Area | 1.6 | 4.3 | 3,531,905.4 |
| Water Area | 0.0 | 0.3 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Chalfont, PA | Bloomsburg, PA | United States |
| Age 0 to 4 | 4.2% | 4.1% | 5.9% |
| Age 5 to 9 | 4.8% | 3.8% | 6.1% |
| Age 10 to 14 | 7.8% | 2.6% | 6.6% |
| Age 15 to 17 | 9.1% | 1.1% | 3.9% |
| Age 18 to 20 | 1.6% | 23.2% | 4.0% |
| Age 21 to 24 | 4.2% | 19.2% | 5.2% |
| Age 25 to 34 | 10.2% | 11.0% | 13.8% |
| Age 35 to 44 | 15.0% | 9.1% | 12.9% |
| Age 45 to 54 | 14.9% | 6.2% | 12.6% |
| Age 55 to 59 | 10.5% | 4.4% | 6.7% |
| Age 60 to 64 | 5.2% | 2.8% | 6.3% |
| Age 65 to 74 | 5.7% | 6.7% | 9.6% |
| Age 75 to 84 | 4.3% | 3.4% | 4.5% |
| Age 85 and over | 2.6% | 2.2% | 1.9% |
| space1 | | | |
| Race | | | |
| | Chalfont, PA | Bloomsburg, PA | United States |
| White | 89.6% | 86.5% | 59.4% |
| Black | 0.1% | 3.9% | 12.2% |
| Asian | 5.4% | 1.1% | 5.6% |
| Native American | 0.0% | 0.0% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.2% | 0.2% |
| Other | 0.0% | 0.0% | 0.4% |
| Two or More Races | 1.4% | 0.9% | 3.2% |
| Hispanic | 3.5% | 7.4% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Chalfont, PA | Bloomsburg, PA | United States |
| Married Population | 54.1% | 18.3% | 49.8% |
| Currently Married | 49.7% | 17.7% | 48.0% |
| Married but Separated | 4.4% | 0.6% | 1.8% |
| Single Population | 45.9% | 81.7% | 50.2% |
| Never Married | 30.8% | 65.3% | 33.8% |
| Divorced | 7.9% | 12.1% | 10.8% |
| Widowed | 7.2% | 4.3% | 5.6% |
| space5 | | | |
| Household Size | 2.42 | 2.13 | 2.60 |
| Households | 1,748 | 4,387 | 124,010,992 |
| Family Households | 1,214 | 1,721 | 80,755,759 |
| Married couple, w/children | 30.2% | 24.0% | 30.5% |
| Married couple, no children | 40.2% | 27.7% | 42.9% |
| Non Family Households | 534 | 2,666 | 43,255,233 |
| Single householder, w/children | 24.1% | 29.5% | 15.8% |
| Single householder, no children | 5.5% | 18.8% | 10.8% |