11780 Frequently Asked Questions

A: ZIP Code 11780 is Located in Saint James New York. Portions of 11780 are also in Nissequogue, Head of the Harbor, St. James, Kings Park, Nesconset, Smithtown, Stony Brook, Smithtown (town), Brookhaven (town).

A: ZIP Code 11780 is Located Entirely in Suffolk County New York.

A: The Current Sales Tax in ZIP Code 11780 is 8.6%

A: The Area Codes for 11780 are 631 and 934

A: ZIP Code 11780 is in the New York 1st Congressional District.

A: 11780 is within New York State Senate District 4 and New York State Senate District 8.

A: 11780 is within New York State Assembly District 1 and New York State Assembly District 2.

A: The 2022 population of ZIP Code 11780 is 15617. The population growth rate in 11780 is 2.40%. The population density of 11780 is 1,364.

A: The majority race/ethnicity of people residing in 11780 is White (86.23%). The majority race/ethnicity of students attending public schools in 11780 is White(81.84%).

A: The median household income in 11780 is $139,365 (2021) and the average adjusted income is $1,055,580 (2021).