Stony Brook is a city located in New York. Stony Brook has a 2020 population of 12,641. Stony Brook is currently declining at a rate of 0.00% annually and its population has decreased by -8.00% since the most recent census, which recorded a population of 13,740 in 2010. Stony Brook reached it's highest population of 13,936 in 2014.
The average household income in Stony Brook is $159,177 with a poverty rate of 7.06%. The median rental costs in recent years comes to $3,197 per month, and the median house value is $452,300. The median age in Stony Brook is 46 years, 41 years for males, and 48.9 years for females. For every 100 females there are 103.9 males.