| | Swartz, LA | Nanuet, NY | United States |
| Population | 4,728 | 19,624 | 329,725,481 |
| Female Population | 53.3% | 50.4% | 50.5% |
| Male Population | 46.7% | 49.6% | 49.5% |
| Median Age | 33 | 45.1 | 38.4 |
| space3 | | | |
| Population - 2010 | 4,562 | 17,805 | 309,327,143 |
| Population - 2000 | 4,247 | 16,707 | 285,036,114 |
| Population - 1990 | 3,698 | 14,065 | 251,960,433 |
| Pop. 2000 to Now | 10.7% | 10.7% | 15.6% |
| Pop. 1990 to Now | 27.1% | 31.5% | 30.8% |
| space4 | | | |
| Population Density | 581.2 | 3,611.3 | 93.4 |
| Land Area | 8.1 | 5.4 | 3,531,905.4 |
| Water Area | 0.0 | 0.0 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Swartz, LA | Nanuet, NY | United States |
| Age 0 to 4 | 6.0% | 4.5% | 5.9% |
| Age 5 to 9 | 6.2% | 3.4% | 6.1% |
| Age 10 to 14 | 6.6% | 6.4% | 6.6% |
| Age 15 to 17 | 4.4% | 4.4% | 3.9% |
| Age 18 to 20 | 4.5% | 2.3% | 4.0% |
| Age 21 to 24 | 5.3% | 4.3% | 5.2% |
| Age 25 to 34 | 19.6% | 13.1% | 13.8% |
| Age 35 to 44 | 7.7% | 11.3% | 12.9% |
| Age 45 to 54 | 14.1% | 15.9% | 12.6% |
| Age 55 to 59 | 4.1% | 7.5% | 6.7% |
| Age 60 to 64 | 8.2% | 7.1% | 6.3% |
| Age 65 to 74 | 8.0% | 11.0% | 9.6% |
| Age 75 to 84 | 4.5% | 6.2% | 4.5% |
| Age 85 and over | 0.7% | 2.6% | 1.9% |
| space1 | | | |
| Race | | | |
| | Swartz, LA | Nanuet, NY | United States |
| White | 74.0% | 54.8% | 59.4% |
| Black | 18.9% | 13.5% | 12.2% |
| Asian | 0.7% | 12.1% | 5.6% |
| Native American | 0.0% | 0.1% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.2% | 1.2% | 0.4% |
| Two or More Races | 4.2% | 2.4% | 3.2% |
| Hispanic | 2.0% | 16.0% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Swartz, LA | Nanuet, NY | United States |
| Married Population | 54.1% | 48.5% | 49.8% |
| Currently Married | 51.5% | 46.9% | 48.0% |
| Married but Separated | 2.6% | 1.6% | 1.8% |
| Single Population | 45.9% | 51.5% | 50.2% |
| Never Married | 29.7% | 35.3% | 33.8% |
| Divorced | 8.7% | 9.8% | 10.8% |
| Widowed | 7.5% | 6.4% | 5.6% |
| space5 | | | |
| Household Size | 3.14 | 2.74 | 2.60 |
| Households | 1,503 | 7,024 | 124,010,992 |
| Family Households | 1,081 | 4,887 | 80,755,759 |
| Married couple, w/children | 33.3% | 34.2% | 30.5% |
| Married couple, no children | 44.0% | 42.5% | 42.9% |
| Non Family Households | 422 | 2,137 | 43,255,233 |
| Single householder, w/children | 7.9% | 10.1% | 15.8% |
| Single householder, no children | 14.8% | 13.2% | 10.8% |