ZIP Code 11778

In ZIP code 11778, which covers Stony Brook, households earn a median of $126,349, while per-capita income sits at $53,165. With a median home value of $456,500 and a county-level effective property tax rate of 1.73%, annual property taxes on such a home would run roughly $7,900. That leaves a meaningful share of earnings committed to housing costs, though the income level supports it. Day-to-day purchases carry an 8.75% combined sales tax, adding to routine expenses. Overall, the earnings picture here aligns with a higher-cost part of Long Island, where property and sales taxes both shape the annual budget.