South Valley Stream is a city located in New York. South Valley Stream has a 2020 population of 6,930. South Valley Stream is currently declining at a rate of 0.00% annually and its population has increased by 16.24% since the most recent census, which recorded a population of 5,962 in 2010. South Valley Stream reached it's highest population of 6,930 in 2018.
The average household income in South Valley Stream is $143,754 with a poverty rate of 2.46%. The median rental costs in recent years comes to $1,200 per month, and the median house value is $455,600. The median age in South Valley Stream is 35 years, 34 years for males, and 35.4 years for females. For every 100 females there are 88.0 males.