ZIP Code 11739

ZIP code 11739, centered on Stony Brook, ranks among the wealthier areas on Long Island, with a median household income of $164,286 and per-capita income of $70,270. Homes here carry a median value of $853,100, and the county-level effective property tax rate of 1.73% translates into a substantial annual bill on that value. Add an 8.75% combined sales tax rate, and the overall cost of living and tax load run high, consistent with an affluent community where prices and public levies both sit well above national norms.