South Valley Stream is a CDP located in Nassau County, New York. South Valley Stream has a 2026 population of 6,227. South Valley Stream is currently growing at a rate of 0.27% annually and its population has decreased by 0% since the most recent census, which recorded a population of 0 in 2020.
The median household income in South Valley Stream is $145,000 with a poverty rate of 9.75%. The median age in South Valley Stream is 37.1 years: 38.8 years for males, and 36.6 years for females. For every 100 females there are 81.3 males.
Data after 2023 is projected based on recent change
Overall: 37.1 years
Female: 36.6 years
Male: 38.8 years
There are 4,875 adults, (1,455 of whom are seniors) in South Valley Stream.
Female: 3,592 (55.2%)
Male: 2,920 (44.8%)
The racial composition of South Valley Stream includes 36.9% White, 24.55% Black or African American, 23.66% Asian, 3.32% other race, and smaller percentages for and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 2,403 | 36.9% |
| Black or African American | 1,599 | 24.55% |
| Asian | 1,541 | 23.66% |
| Two or more races | 753 | 11.56% |
| Other race | 216 | 3.32% |
South Valley Stream 's average per capita income is $67,035. Household income levels show a median of $145,000. The poverty rate stands at 9.75%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $187,202 | - |
| Families | $169,816 | $189,407 |
| Households | $145,000 | $173,399 |
| Non Families | $86,901 | $91,873 |
Average Income
Median Household Income
Poverty Rate