11788 Frequently Asked Questions

A: ZIP Code 11788 is Located in Hauppauge New York. Portions of 11788 are also in Islandia, Islip (town), Smithtown (town).

A: ZIP Code 11788 is Located Entirely in Suffolk County New York.

A: The Current Sales Tax in ZIP Code 11788 is 8.6%

A: The Area Codes for 11788 are 631 and 934

A: 11788 is within by the New York 2nd Congressional District and the New York 1st Congressional District.

A: 11788 is within New York State Senate District 6 and New York State Senate District 8.

A: 11788 is within New York State Assembly District 2 and New York State Assembly District 4.

A: The 2022 population of ZIP Code 11788 is 17017. The population growth rate in 11788 is 3.30%.

A: The majority race/ethnicity of people residing in 11788 is White (80.48%). The majority race/ethnicity of students attending public schools in 11788 is White(68.70%).

A: The median household income in 11788 is $129,316 (2021) and the average adjusted income is $119,530 (2020).