| | Ambler, PA | Mount Holly, NJ | United States |
| Population | 6,747 | 9,918 | 329,725,481 |
| Female Population | 50.4% | 43.3% | 50.5% |
| Male Population | 49.6% | 56.7% | 49.5% |
| Median Age | 36.3 | 35.2 | 38.4 |
| space3 | | | |
| Population - 2010 | 6,426 | 9,554 | 309,327,143 |
| Population - 2000 | 6,426 | 10,728 | 285,036,114 |
| Population - 1990 | 6,609 | 10,639 | 251,960,433 |
| Pop. 2000 to Now | 1.1% | -11.2% | 15.6% |
| Pop. 1990 to Now | -1.7% | -10.5% | 30.8% |
| space4 | | | |
| Population Density | 7,919.0 | 3,534.6 | 93.4 |
| Land Area | 0.9 | 2.8 | 3,531,905.4 |
| Water Area | 0.0 | 0.0 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Ambler, PA | Mount Holly, NJ | United States |
| Age 0 to 4 | 5.6% | 4.6% | 5.9% |
| Age 5 to 9 | 7.4% | 5.3% | 6.1% |
| Age 10 to 14 | 6.9% | 7.3% | 6.6% |
| Age 15 to 17 | 3.7% | 4.3% | 3.9% |
| Age 18 to 20 | 2.7% | 4.1% | 4.0% |
| Age 21 to 24 | 3.7% | 4.8% | 5.2% |
| Age 25 to 34 | 17.1% | 19.1% | 13.8% |
| Age 35 to 44 | 11.9% | 13.8% | 12.9% |
| Age 45 to 54 | 17.9% | 11.6% | 12.6% |
| Age 55 to 59 | 3.7% | 7.5% | 6.7% |
| Age 60 to 64 | 6.7% | 5.5% | 6.3% |
| Age 65 to 74 | 6.8% | 7.4% | 9.6% |
| Age 75 to 84 | 3.7% | 3.4% | 4.5% |
| Age 85 and over | 2.1% | 1.3% | 1.9% |
| space1 | | | |
| Race | | | |
| | Ambler, PA | Mount Holly, NJ | United States |
| White | 69.6% | 53.4% | 59.4% |
| Black | 12.5% | 22.4% | 12.2% |
| Asian | 3.9% | 3.2% | 5.6% |
| Native American | 0.0% | 0.1% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.5% | 0.3% | 0.4% |
| Two or More Races | 3.4% | 6.0% | 3.2% |
| Hispanic | 10.0% | 14.6% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Ambler, PA | Mount Holly, NJ | United States |
| Married Population | 48.6% | 41.6% | 49.8% |
| Currently Married | 48.2% | 38.8% | 48.0% |
| Married but Separated | 0.4% | 2.8% | 1.8% |
| Single Population | 51.4% | 58.4% | 50.2% |
| Never Married | 36.8% | 43.7% | 33.8% |
| Divorced | 10.2% | 10.8% | 10.8% |
| Widowed | 4.4% | 3.9% | 5.6% |
| space5 | | | |
| Household Size | 2.50 | 2.58 | 2.60 |
| Households | 2,606 | 3,536 | 124,010,992 |
| Family Households | 1,636 | 2,075 | 80,755,759 |
| Married couple, w/children | 37.7% | 28.5% | 30.5% |
| Married couple, no children | 40.0% | 41.1% | 42.9% |
| Non Family Households | 970 | 1,461 | 43,255,233 |
| Single householder, w/children | 14.5% | 16.3% | 15.8% |
| Single householder, no children | 7.8% | 14.1% | 10.8% |