| | Prattsburgh, NY | Sound Beach, NY | United States |
| Population | 1,756 | 7,289 | 329,725,481 |
| Female Population | 51.8% | 53.3% | 50.5% |
| Male Population | 48.2% | 46.7% | 49.5% |
| Median Age | 38.6 | 43.5 | 38.4 |
| space3 | | | |
| Population - 2010 | 2,082 | 7,579 | 309,327,143 |
| Population - 2000 | 2,064 | 9,807 | 285,036,114 |
| Population - 1990 | 1,894 | 9,102 | 251,960,433 |
| Pop. 2000 to Now | -6.0% | -19.0% | 15.6% |
| Pop. 1990 to Now | 2.5% | -12.7% | 30.8% |
| space4 | | | |
| Population Density | 34.0 | 4,452.7 | 93.4 |
| Land Area | 51.7 | 1.6 | 3,531,905.4 |
| Water Area | 0.1 | 0.0 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Prattsburgh, NY | Sound Beach, NY | United States |
| Age 0 to 4 | 6.8% | 3.6% | 5.9% |
| Age 5 to 9 | 7.7% | 7.2% | 6.1% |
| Age 10 to 14 | 7.8% | 6.0% | 6.6% |
| Age 15 to 17 | 3.8% | 6.2% | 3.9% |
| Age 18 to 20 | 2.9% | 4.7% | 4.0% |
| Age 21 to 24 | 3.1% | 2.4% | 5.2% |
| Age 25 to 34 | 13.0% | 8.5% | 13.8% |
| Age 35 to 44 | 11.4% | 15.0% | 12.9% |
| Age 45 to 54 | 14.6% | 18.5% | 12.6% |
| Age 55 to 59 | 7.2% | 8.6% | 6.7% |
| Age 60 to 64 | 4.4% | 7.0% | 6.3% |
| Age 65 to 74 | 11.2% | 5.6% | 9.6% |
| Age 75 to 84 | 5.4% | 4.2% | 4.5% |
| Age 85 and over | 0.7% | 2.4% | 1.9% |
| space1 | | | |
| Race | | | |
| | Prattsburgh, NY | Sound Beach, NY | United States |
| White | 91.6% | 87.1% | 59.4% |
| Black | 0.3% | 0.9% | 12.2% |
| Asian | 3.7% | 2.1% | 5.6% |
| Native American | 0.0% | 2.4% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 0.0% | 0.4% |
| Two or More Races | 3.9% | 0.6% | 3.2% |
| Hispanic | 0.5% | 6.9% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Prattsburgh, NY | Sound Beach, NY | United States |
| Married Population | 56.0% | 52.8% | 49.8% |
| Currently Married | 53.5% | 50.5% | 48.0% |
| Married but Separated | 2.5% | 2.3% | 1.8% |
| Single Population | 44.0% | 47.2% | 50.2% |
| Never Married | 26.2% | 31.9% | 33.8% |
| Divorced | 10.8% | 9.1% | 10.8% |
| Widowed | 7.0% | 6.2% | 5.6% |
| space5 | | | |
| Household Size | 2.74 | 2.85 | 2.60 |
| Households | 638 | 2,544 | 124,010,992 |
| Family Households | 423 | 1,625 | 80,755,759 |
| Married couple, w/children | 28.6% | 50.8% | 30.5% |
| Married couple, no children | 50.1% | 35.3% | 42.9% |
| Non Family Households | 215 | 919 | 43,255,233 |
| Single householder, w/children | 15.1% | 6.0% | 15.8% |
| Single householder, no children | 6.1% | 7.9% | 10.8% |