Stony Brook is a city located in Suffolk County New York. Stony Brook has a 2020 population of 12,428. Stony Brook is currently declining at a rate of 0.00% annually and its population has decreased by -9.55% 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 $162,073 with a poverty rate of 5.99%. The median rental costs in recent years comes to $2,205 per month, and the median house value is $461,800. The median age in Stony Brook is 47.1 years, 41.1 years for males, and 49.3 years for females.