About 1.9% of families and 2.9% of the population were below the poverty line, including 1.9% of those under age 18 and 2.9% of those age 65 or over.
Средний доход семьи — 95 567 долларов в год, 1,9 % семей и 2,9 % населения Стоуни-Брук находились за чертой бедности.