Residential delivery area · New York
ZIP Code 11733: East Setauket, NY
ZIP code 11733 uses the postal name East Setauket, New York and lies entirely in Suffolk County (Census 2020 ZIP-county file). About 18,000 people live there (Census Bureau, ACS 2020-2024). Median household income is $173,281 (Census Bureau, ACS 2020-2024). By Census place, its land lies in East Setauket (48%), Setauket (20%), Old Field (18%), Port Jefferson Station (6%) and Poquott (4%), and 5% in smaller places.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- East Setauket · its only residential ZIP
- County
- Suffolk County
- Census places
- East Setauket (48%) census-designated place; Setauket (20%) census-designated place; Old Field (18%); Port Jefferson Station (6%) 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
- 11.7 sq mi · 1,512 people per sq mi
Where is ZIP code 11733?
11733 centers on 40.940°, -73.113° and covers 11.7 square miles of land plus 4.5 of water. It borders 4 ZIP codes: 11790, 11777, 11776, 11720.
The map draws ZIP code areas only. For the streets inside 11733, 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 11733 compare with the rest of Suffolk County?
| Measure | 11733 | In Suffolk County | In NY |
|---|---|---|---|
| People (ACS 2020-2024) | 17,752 | 30th of 108 | 362nd of 1,826 |
| Median household income | $173k | 7th of 81 | 54th of 1,081 |
| Median home value | $683k | 28th of 88 | 202nd of 1,172 |
Its median household income is higher than in 98% of U.S. residential ZIP codes, and it is denser than 82% 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 11733?
The 2020 Census counted 17,967 people in 11733; the ACS, which samples households over 2020-2024, estimates 17,752. Between the 2010 and 2020 censuses its population fell 5.2% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 17,752
- 2020 Census count
- 17,967−5.2% since 2010 (18,949)
- Households
- 6,137
- Median age
- 44.8
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 11733?
Of the 17,752 people the ACS estimates in 11733, 22.4% are under 18 and 21.2% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (77.5%).
- Under 1822.4%
- 18 to 6456.4%
- 65 and older21.2%
- White, not Hispanic77.5%
- Asian, not Hispanic8.7%
- Hispanic or Latino7.4%
- Other or two or more4.5%
- Black, not Hispanic1.8%
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 11733 earn?
Median household income is $173,281 (ACS 2020-2024), the 7th highest of the 81 ranked ZIP codes in Suffolk County. It is not measurably different from 2015-2019 ($190,742 in 2024 dollars): the change is within the surveys' margins of error.
- Median household income
- $173,281±$23,624
- Income per person
- $80,855
- Below the poverty line
- 4.9%
- Unemployed (of the labor force)
- 5.5%
- Adults 25+ with a bachelor's degree
- 62.2%
- Adjusted gross income per tax return, 2022
- $360,8649,020 returns; wages 52% 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 11733?
FHFA's house price index for 11733, built from repeat sales and appraisals of the same homes, rose 75% from 2015 to 2025 and rose 53% from 2020 to 2025, and moved +6.0% in 2025.
- Median home value (owners' estimate)
- $683,400
- Median gross rent
- $2,411
- Homes owned by their occupants
- 85.0%
- Housing units
- 6,642
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 11733?
665 business establishments had a location in this ZIP code in 2023, 17 more than in 2018; the most are in health care and social assistance (ZIP Code Business Patterns).
- Health care and social assistance132
- Professional, scientific, and technical services98
- Construction63
- Other services (except public administration)63
- Retail trade57
- Administrative and support and waste management and remediation services44
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 11733?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 11790 | Stony Brook | 21,074 | $171k | 2.4 mi |
| 11777 | Port Jefferson | 9,396 | $151k | 2.6 mi |
| 11776 | Port Jefferson Station | 22,808 | $121k | 4.0 mi |
| 11720 | Centereach | 29,292 | $135k | 5.1 mi |
| 11794 | Stony Brook | 831 | – | 1.6 mi (near) |
| 11780 | Saint James | 15,018 | $145k | 3.7 mi (near) |
| 11766 | Mount Sinai | 10,750 | $153k | 4.9 mi (near) |
| 11755 | Lake Grove | 12,144 | $119k | 5.7 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.