ZIP Code 11747

ZIP code 11747, centered on Stony Brook, ranks among the wealthier areas on Long Island. A median household income of $159,540 and per-capita income of $81,231 place it well above national averages, while a median home value of $757,800 confirms its affluent character. That prosperity carries a tax cost: the county-level effective property tax rate of 1.73% is steep, and the combined sales tax rate of 8.75% adds to everyday expenses. Owners of a home at the median value would owe roughly $13,100 annually in property taxes, a substantial sum even against these incomes.