| | Trappe, PA | Breinigsville, PA | United States |
| Population | 3,946 | 8,205 | 329,725,481 |
| Female Population | 53.7% | 56.1% | 50.5% |
| Male Population | 46.3% | 43.9% | 49.5% |
| Median Age | 39.9 | 36.7 | 38.4 |
| space3 | | | |
| Population - 2010 | 3,510 | 2,649 | 309,327,143 |
| Population - 2000 | 3,210 | 1,648 | 285,036,114 |
| Population - 1990 | 2,115 | 1,536 | 251,960,433 |
| Pop. 2000 to Now | 16.5% | 242.7% | 15.6% |
| Pop. 1990 to Now | 76.8% | 267.6% | 30.8% |
| space4 | | | |
| Population Density | 1,898.9 | 2,555.3 | 93.4 |
| Land Area | 2.1 | 3.2 | 3,531,905.4 |
| Water Area | 0.0 | 0.0 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Trappe, PA | Breinigsville, PA | United States |
| Age 0 to 4 | 5.1% | 6.5% | 5.9% |
| Age 5 to 9 | 2.9% | 6.7% | 6.1% |
| Age 10 to 14 | 6.2% | 13.7% | 6.6% |
| Age 15 to 17 | 7.5% | 5.9% | 3.9% |
| Age 18 to 20 | 4.8% | 1.2% | 4.0% |
| Age 21 to 24 | 2.7% | 1.8% | 5.2% |
| Age 25 to 34 | 16.0% | 12.3% | 13.8% |
| Age 35 to 44 | 12.1% | 19.5% | 12.9% |
| Age 45 to 54 | 16.2% | 6.9% | 12.6% |
| Age 55 to 59 | 7.5% | 8.5% | 6.7% |
| Age 60 to 64 | 6.1% | 6.8% | 6.3% |
| Age 65 to 74 | 7.1% | 6.7% | 9.6% |
| Age 75 to 84 | 3.1% | 2.2% | 4.5% |
| Age 85 and over | 2.5% | 1.4% | 1.9% |
| space1 | | | |
| Race | | | |
| | Trappe, PA | Breinigsville, PA | United States |
| White | 81.6% | 56.4% | 59.4% |
| Black | 7.1% | 7.8% | 12.2% |
| Asian | 4.8% | 16.7% | 5.6% |
| Native American | 0.0% | 0.0% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.3% | 0.0% | 0.4% |
| Two or More Races | 0.5% | 3.2% | 3.2% |
| Hispanic | 5.8% | 15.9% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Trappe, PA | Breinigsville, PA | United States |
| Married Population | 58.5% | 58.6% | 49.8% |
| Currently Married | 57.6% | 58.6% | 48.0% |
| Married but Separated | 0.9% | 0.0% | 1.8% |
| Single Population | 41.5% | 41.4% | 50.2% |
| Never Married | 29.6% | 25.8% | 33.8% |
| Divorced | 8.6% | 10.4% | 10.8% |
| Widowed | 3.4% | 5.1% | 5.6% |
| space5 | | | |
| Household Size | 2.61 | 3.03 | 2.60 |
| Households | 1,514 | 2,708 | 124,010,992 |
| Family Households | 1,157 | 2,108 | 80,755,759 |
| Married couple, w/children | 38.1% | 48.8% | 30.5% |
| Married couple, no children | 45.7% | 30.3% | 42.9% |
| Non Family Households | 357 | 600 | 43,255,233 |
| Single householder, w/children | 13.2% | 7.5% | 15.8% |
| Single householder, no children | 2.9% | 13.4% | 10.8% |