Syosset is a city located in New York. Syosset has a 2020 population of 19,559. Syosset is currently declining at a rate of 0.00% annually and its population has increased by 3.88% since the most recent census, which recorded a population of 18,829 in 2010. Syosset reached it's highest population of 19,669 in 2017.
The average household income in Syosset is $199,579 with a poverty rate of 3.18%. The median rental costs in recent years comes to $2,256 per month, and the median house value is $642,500. The median age in Syosset is 42.7 years, 41.3 years for males, and 43.8 years for females. For every 100 females there are 100.5 males.