ZIP Code 11718

Stony Brook’s 11718 ZIP code sits in a high-earning bracket, with a median household income of $218,000 and per-capita income of $80,489. Housing costs track that prosperity: the median home value reaches $768,600, and county property taxes run at an effective 1.73%, a meaningful annual outlay on a home at that price. Day-to-day purchases carry an 8.75% combined sales tax. The earnings picture here supports a substantial budget, though a pricier housing stock and elevated local taxes claim a sizable share of it before everyday spending even enters the equation.