Residential delivery area · New York
ZIP Code 11790: Stony Brook, NY
ZIP code 11790 is in Stony Brook, New York, entirely in Suffolk County (Census 2020 ZIP-county file). About 21,000 people live there (Census Bureau, ACS 2020-2024), the more populous of Stony Brook's 2 residential ZIP codes. Median household income is $171,133 (Census Bureau, ACS 2020-2024). By Census place, its land lies in Stony Brook (74%) and Stony Brook University (18%), and 8% in smaller places.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Stony Brook · 2 residential ZIPs
- County
- Suffolk County
- Census places
- Stony Brook (74%) census-designated place; Stony Brook University (18%) census-designated place
- Metro area
- New York-Newark-Jersey City, NY-NJ
- House district
- NY-1 119th Congress
- State
- New York
- Time zone
- Eastern
- Land area
- 7.3 sq mi · 2,889 people per sq mi
Where is ZIP code 11790?
11790 centers on 40.908°, -73.127° and covers 7.3 square miles of land plus 0.4 of water. It borders 4 ZIP codes: 11794, 11733, 11780, 11755.
The map draws ZIP code areas only. For the streets inside 11790, open its center on OpenStreetMap.
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries and the 2023 Gazetteer (2020 ZCTAs); ZIP-to-county shares, Census places and House districts (119th Congress) from the Census 2020 relationship files (shares of land); metro area from the OMB delineation (July 2023); town name and time zone from simplemaps US ZIP Codes (CC BY 4.0).
How does 11790 compare with the rest of Stony Brook?
| Measure | 11790 | In Stony Brook | In Suffolk County | In NY |
|---|---|---|---|---|
| People (ACS 2020-2024) | 21,074 | 1st of 2 | 27th of 108 | 316th of 1,826 |
| Median household income | $171k | 1st of 1 | 9th of 81 | 59th of 1,081 |
| Median home value | $624k | 1st of 1 | 42nd of 88 | 273rd of 1,172 |
Its median household income is higher than in 98% of U.S. residential ZIP codes, and it is denser than 88% of all U.S. residential ZIP codes. ZIP codes at the ACS caps ($250,000 or more for household income, $2,000,000 or more for home value) share the top rank.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B19013, B25077); ranks by PlainZIP over residential ZIP codes (ZCTAs).
How many people live in 11790?
The 2020 Census counted 21,519 people in 11790; the ACS, which samples households over 2020-2024, estimates 21,074. Between the 2010 and 2020 censuses its population grew 16.2% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 21,074
- 2020 Census count
- 21,519+16.2% since 2010 (18,511)
- Households
- 4,455
- Median age
- 22.3
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B01002, B11001); 2020 Census (DHC P1); 2010 Census (SF1 P1).
Who lives in 11790?
Of the 21,074 people the ACS estimates in 11790, 12.8% are under 18 and 12.9% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (57.7%), then Asian (not Hispanic) (27.0%).
- Under 1812.8%
- 18 to 6474.2%
- 65 and older12.9%
- White, not Hispanic57.7%
- Asian, not Hispanic27.0%
- Hispanic or Latino8.5%
- Black, not Hispanic4.6%
- Other or two or more2.2%
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01001 age by sex, B03002 Hispanic or Latino origin by race); shares of the estimated population, small ZIP codes carry wide margins.
What do households in 11790 earn?
Median household income is $171,133 (ACS 2020-2024), the 9th highest of the 81 ranked ZIP codes in Suffolk County. It is not measurably different from 2015-2019 ($160,253 in 2024 dollars): the change is within the surveys' margins of error.
- Median household income
- $171,133±$17,901
- Income per person
- $46,659
- Below the poverty line
- 6.9%
- Unemployed (of the labor force)
- 6.4%
- Adults 25+ with a bachelor's degree
- 69.9%
- Adjusted gross income per tax return, 2022
- $151,6337,020 returns; wages 62% of AGI (IRS)
Source: U.S. Census Bureau, ACS 2020-2024 and 2015-2019 5-year estimates (B19013, B19301, B17001, B23025, B15003; 2015-2019 dollars converted with the BLS CPI-U, 1.22699); IRS Statistics of Income, ZIP code data, tax year 2022 (adjusted gross income per return, filed under the address on the return).
What are homes worth in 11790?
FHFA's house price index for 11790, built from repeat sales and appraisals of the same homes, rose 80% from 2015 to 2025 and rose 53% from 2020 to 2025, and moved +5.2% in 2025.
- Median home value (owners' estimate)
- $624,000
- Median gross rent
- $3,500 or more
- Homes owned by their occupants
- 90.5%
- Housing units
- 4,868
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B25077, B25064, B25003, B25001); FHFA House Price Index, annual five-digit ZIP, updated 2026-03-31.
What businesses are in 11790?
502 business establishments had a location in this ZIP code in 2023, 33 more than in 2018; the most are in health care and social assistance (ZIP Code Business Patterns).
- Health care and social assistance119
- Professional, scientific, and technical services68
- Accommodation and food services64
- Other services (except public administration)46
- Construction42
- Retail trade42
Source: U.S. Census Bureau, ZIP Code Business Patterns 2023 and 2018 (establishments with paid employees, by the business's ZIP code).
Which ZIP codes are next to 11790?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 11794 | Stony Brook | 831 | – | 0.8 mi |
| 11733 | East Setauket | 17,752 | $173k | 2.4 mi |
| 11780 | Saint James | 15,018 | $145k | 2.4 mi |
| 11755 | Lake Grove | 12,144 | $119k | 3.5 mi |
| 11720 | Centereach | 29,292 | $135k | 3.5 mi (near) |
| 11767 | Nesconset | 14,964 | $153k | 4.3 mi (near) |
| 11776 | Port Jefferson Station | 22,808 | $121k | 4.3 mi (near) |
| 11777 | Port Jefferson | 9,396 | $151k | 4.6 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.