| | South Glens Falls, NY | West Glens Falls, NY | United States |
| Population | 3,742 | 9,379 | 329,725,481 |
| Female Population | 50.5% | 50.9% | 50.5% |
| Male Population | 49.5% | 49.1% | 49.5% |
| Median Age | 36.1 | 43.1 | 38.4 |
| space3 | | | |
| Population - 2010 | 3,520 | 6,629 | 309,327,143 |
| Population - 2000 | 3,368 | 6,721 | 285,036,114 |
| Population - 1990 | 3,506 | 5,964 | 251,960,433 |
| Pop. 2000 to Now | 7.4% | 6.1% | 15.6% |
| Pop. 1990 to Now | 3.2% | 19.6% | 30.8% |
| space4 | | | |
| Population Density | 2,755.5 | 2,001.5 | 93.4 |
| Land Area | 1.4 | 4.7 | 3,531,905.4 |
| Water Area | 0.1 | 0.1 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | South Glens Falls, NY | West Glens Falls, NY | United States |
| Age 0 to 4 | 4.3% | 3.4% | 5.9% |
| Age 5 to 9 | 6.4% | 6.4% | 6.1% |
| Age 10 to 14 | 6.8% | 7.1% | 6.6% |
| Age 15 to 17 | 1.0% | 4.6% | 3.9% |
| Age 18 to 20 | 2.8% | 2.5% | 4.0% |
| Age 21 to 24 | 13.0% | 5.1% | 5.2% |
| Age 25 to 34 | 13.5% | 9.7% | 13.8% |
| Age 35 to 44 | 12.9% | 12.5% | 12.9% |
| Age 45 to 54 | 8.6% | 16.4% | 12.6% |
| Age 55 to 59 | 7.6% | 7.7% | 6.7% |
| Age 60 to 64 | 5.0% | 8.4% | 6.3% |
| Age 65 to 74 | 12.2% | 10.5% | 9.6% |
| Age 75 to 84 | 4.7% | 3.5% | 4.5% |
| Age 85 and over | 1.2% | 2.2% | 1.9% |
| space1 | | | |
| Race | | | |
| | South Glens Falls, NY | West Glens Falls, NY | United States |
| White | 92.4% | 92.1% | 59.4% |
| Black | 0.7% | 1.1% | 12.2% |
| Asian | 0.0% | 0.4% | 5.6% |
| Native American | 0.6% | 0.4% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.4% | 0.0% | 0.4% |
| Two or More Races | 3.3% | 2.8% | 3.2% |
| Hispanic | 2.6% | 3.2% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | South Glens Falls, NY | West Glens Falls, NY | United States |
| Married Population | 40.6% | 54.4% | 49.8% |
| Currently Married | 38.2% | 52.8% | 48.0% |
| Married but Separated | 2.5% | 1.6% | 1.8% |
| Single Population | 59.4% | 45.6% | 50.2% |
| Never Married | 37.3% | 27.9% | 33.8% |
| Divorced | 15.1% | 11.0% | 10.8% |
| Widowed | 7.0% | 6.7% | 5.6% |
| space5 | | | |
| Household Size | 2.19 | 2.57 | 2.60 |
| Households | 1,698 | 3,607 | 124,010,992 |
| Family Households | 847 | 2,581 | 80,755,759 |
| Married couple, w/children | 25.1% | 32.5% | 30.5% |
| Married couple, no children | 40.3% | 41.9% | 42.9% |
| Non Family Households | 851 | 1,026 | 43,255,233 |
| Single householder, w/children | 25.1% | 11.5% | 15.8% |
| Single householder, no children | 9.4% | 14.1% | 10.8% |