In 2019, Stony Brook, NY had a population of 12.4k people with a median age of 47.1 and a median household income of $120,476. Between 2018 and 2019 the population of Stony Brook, NY declined from 12,641 to 12,428, a −1.68% decrease and its median household income declined from $130,202 to $120,476, a −7.47% decrease.
The 5 largest ethnic groups in Stony Brook, NY are White (Non-Hispanic) (81.6%), Asian (Non-Hispanic) (9.41%), White (Hispanic) (5.19%), Black or African American (Non-Hispanic) (1.85%), and Two+ (Non-Hispanic) (1.05%). 0% of the households in Stony Brook, NY speak a non-English language at home as their primary language, and 94.6% of the residents in Stony Brook, NY are U.S. citizens.
In 2019, the median property value in Stony Brook, NY was $461,800, and the homeownership rate was 91%. Most people in Stony Brook, NY drove alone to work, and the average commute time was 28.9 minutes. The average car ownership in Stony Brook, NY was 2 cars per household.