| | Morristown, VT | Au Sable, NY | United States |
| Population | 5,455 | 3,163 | 329,725,481 |
| Female Population | 47.6% | 54.7% | 50.5% |
| Male Population | 52.5% | 45.3% | 49.5% |
| Median Age | 36.6 | 42.6 | 38.4 |
| space3 | | | |
| Population - 2010 | 5,229 | 3,147 | 309,327,143 |
| Population - 2000 | 5,139 | 3,015 | 285,036,114 |
| Population - 1990 | 4,733 | 2,870 | 251,960,433 |
| Pop. 2000 to Now | 8.0% | 0.3% | 15.6% |
| Pop. 1990 to Now | 17.2% | 5.4% | 30.8% |
| space4 | | | |
| Population Density | 106.6 | 80.9 | 93.4 |
| Land Area | 51.2 | 39.1 | 3,531,905.4 |
| Water Area | 0.5 | 4.7 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Morristown, VT | Au Sable, NY | United States |
| Age 0 to 4 | 3.2% | 3.9% | 5.9% |
| Age 5 to 9 | 4.4% | 4.7% | 6.1% |
| Age 10 to 14 | 7.0% | 8.3% | 6.6% |
| Age 15 to 17 | 3.7% | 5.7% | 3.9% |
| Age 18 to 20 | 1.4% | 2.9% | 4.0% |
| Age 21 to 24 | 7.0% | 2.0% | 5.2% |
| Age 25 to 34 | 18.4% | 9.7% | 13.8% |
| Age 35 to 44 | 9.8% | 16.8% | 12.9% |
| Age 45 to 54 | 14.4% | 7.9% | 12.6% |
| Age 55 to 59 | 5.3% | 9.6% | 6.7% |
| Age 60 to 64 | 5.5% | 14.6% | 6.3% |
| Age 65 to 74 | 11.7% | 7.7% | 9.6% |
| Age 75 to 84 | 5.7% | 5.0% | 4.5% |
| Age 85 and over | 2.6% | 1.2% | 1.9% |
| space1 | | | |
| Race | | | |
| | Morristown, VT | Au Sable, NY | United States |
| White | 90.4% | 93.6% | 59.4% |
| Black | 2.9% | 0.8% | 12.2% |
| Asian | 0.2% | 0.0% | 5.6% |
| Native American | 0.1% | 0.7% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 0.1% | 0.4% |
| Two or More Races | 3.6% | 2.9% | 3.2% |
| Hispanic | 2.8% | 1.9% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Morristown, VT | Au Sable, NY | United States |
| Married Population | 45.8% | 49.7% | 49.8% |
| Currently Married | 45.3% | 42.7% | 48.0% |
| Married but Separated | 0.5% | 7.0% | 1.8% |
| Single Population | 54.2% | 50.3% | 50.2% |
| Never Married | 36.4% | 26.1% | 33.8% |
| Divorced | 13.6% | 20.1% | 10.8% |
| Widowed | 4.3% | 4.1% | 5.6% |
| space5 | | | |
| Household Size | 2.21 | 2.31 | 2.60 |
| Households | 2,429 | 1,358 | 124,010,992 |
| Family Households | 1,479 | 721 | 80,755,759 |
| Married couple, w/children | 12.6% | 35.9% | 30.5% |
| Married couple, no children | 61.9% | 35.5% | 42.9% |
| Non Family Households | 950 | 637 | 43,255,233 |
| Single householder, w/children | 22.6% | 18.9% | 15.8% |
| Single householder, no children | 2.9% | 9.7% | 10.8% |