| | Holbrook, MA | Langhorne, PA | United States |
| Population | 11,344 | 1,655 | 329,725,481 |
| Female Population | 50.3% | 48.3% | 50.5% |
| Male Population | 49.7% | 51.7% | 49.5% |
| Median Age | 44 | 46.3 | 38.4 |
| space3 | | | |
| Population - 2010 | 10,826 | 1,545 | 309,327,143 |
| Population - 2000 | 10,785 | 1,981 | 285,036,114 |
| Population - 1990 | 11,041 | 1,361 | 251,960,433 |
| Pop. 2000 to Now | 2.1% | -23.9% | 15.6% |
| Pop. 1990 to Now | -0.2% | 10.7% | 30.8% |
| space4 | | | |
| Population Density | 1,564.5 | 3,363.8 | 93.4 |
| Land Area | 7.3 | 0.5 | 3,531,905.4 |
| Water Area | 0.1 | 0.0 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Holbrook, MA | Langhorne, PA | United States |
| Age 0 to 4 | 4.9% | 3.3% | 5.9% |
| Age 5 to 9 | 4.8% | 4.7% | 6.1% |
| Age 10 to 14 | 5.3% | 4.0% | 6.6% |
| Age 15 to 17 | 4.3% | 5.3% | 3.9% |
| Age 18 to 20 | 3.7% | 4.8% | 4.0% |
| Age 21 to 24 | 2.6% | 4.5% | 5.2% |
| Age 25 to 34 | 11.0% | 10.4% | 13.8% |
| Age 35 to 44 | 15.6% | 12.2% | 12.9% |
| Age 45 to 54 | 15.1% | 11.7% | 12.6% |
| Age 55 to 59 | 7.5% | 7.6% | 6.7% |
| Age 60 to 64 | 7.8% | 11.5% | 6.3% |
| Age 65 to 74 | 9.9% | 9.4% | 9.6% |
| Age 75 to 84 | 5.6% | 4.5% | 4.5% |
| Age 85 and over | 2.0% | 6.2% | 1.9% |
| space1 | | | |
| Race | | | |
| | Holbrook, MA | Langhorne, PA | United States |
| White | 71.9% | 86.3% | 59.4% |
| Black | 10.8% | 5.7% | 12.2% |
| Asian | 1.3% | 1.1% | 5.6% |
| Native American | 0.0% | 0.0% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.8% | 0.4% | 0.4% |
| Two or More Races | 8.1% | 1.6% | 3.2% |
| Hispanic | 7.2% | 4.9% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Holbrook, MA | Langhorne, PA | United States |
| Married Population | 48.4% | 45.1% | 49.8% |
| Currently Married | 46.6% | 44.3% | 48.0% |
| Married but Separated | 1.8% | 0.8% | 1.8% |
| Single Population | 51.6% | 54.9% | 50.2% |
| Never Married | 32.7% | 41.4% | 33.8% |
| Divorced | 12.6% | 6.6% | 10.8% |
| Widowed | 6.4% | 6.9% | 5.6% |
| space5 | | | |
| Household Size | 2.40 | 2.27 | 2.60 |
| Households | 4,712 | 580 | 124,010,992 |
| Family Households | 3,173 | 360 | 80,755,759 |
| Married couple, w/children | 28.4% | 24.7% | 30.5% |
| Married couple, no children | 39.5% | 58.9% | 42.9% |
| Non Family Households | 1,539 | 220 | 43,255,233 |
| Single householder, w/children | 14.8% | 11.4% | 15.8% |
| Single householder, no children | 17.3% | 5.0% | 10.8% |