ZIP Code 11729

In ZIP code 11729, near Stony Brook, homes carry a median value of $539,700, and the county-level effective property tax rate of 1.73% works out to roughly $9,300 a year in taxes on such a home. Households here earn a median of $136,939, while per-capita income sits at $50,951, so the tax bill absorbs a meaningful share of earnings even at these income levels. Combined with an 8.75% sales tax rate, carrying costs add up quickly for buyers weighing a purchase in this area.