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City ZIP codes · New York

Stony Brook, NY ZIP Codes

2 ZIP codes use the postal name Stony Brook, New York (Census 2020 ZCTAs and GeoNames postal codes, October 2026), all residential. Stony Brook's most populous ZIP code is 11790, with 21,074 people (ACS 2020-2024); 74% of its land is in the city of Stony Brook.

  • ACS2020-24
  • Census2020
  • GeoNames2026

Where are Stony Brook's ZIP codes?

11790: $171k median household income11794: – median household income117901179411790: $171k median household income11794: – median household income117901179411790: $171k median household income11794: – median household income1179011794
The 2 residential ZIP codes named Stony Brook, shaded by median household income in national fifths (ACS 2020-2024). Select a ZIP to open it. <$54.1k$98.1k+no figure

Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries; ACS 2020-2024 5-year estimates (B19013).

All 2 residential ZIP codes of Stony Brook

Residential ZIP codes with the postal name Stony Brook, NY, largest first (ACS 2020-2024); sort by any column
County
11790 Suffolk County 21,074 2,889 $171k $624k
11794 Suffolk County 831 3,645 – –

Download the 2 ZIP codes as CSV

Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates; 2023 Gazetteer land areas (2020 ZCTAs); town names from simplemaps US ZIP Codes (CC BY 4.0) and GeoNames (CC BY 4.0).

Which counties do Stony Brook's ZIP codes reach?

Stony Brook's residential ZIP codes lie in Suffolk County.

Which places do Stony Brook's ZIP codes cover?

A postal name is not a city limit. By the Census Bureau's places, Stony Brook's residential ZIP codes cover Stony Brook itself and 1 other place, each listed with the ZIP codes that have at least 5% of their land in it or hold most of the place:

  • Stony Brook University census-designated 11790, 11794

Source: U.S. Census Bureau, 2020 ZCTA-to-place relationship file (shares of land).

Which first three digits do Stony Brook's ZIP codes use?

The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. Every ZIP code of Stony Brook starts with 117.

Three-digit prefixes of Stony Brook's ZIP codes, the sectional center for each (USPS labeling list L005, effective October 1, 2026) and how many of the prefix's codes are Stony Brook's
PrefixSectional centerHereAll codes
117 Mid-Island, NY (SCF 117) 2 82

Source: U.S. Postal Service, labeling list L005 (3-digit ZIP Code prefix groups, SCF sortation), effective October 1, 2026.