Residential delivery area · New York
ZIP Code 11771: Oyster Bay, NY
ZIP code 11771 uses the postal name Oyster Bay, New York and lies entirely in Nassau County (Census 2020 ZIP-county file). About 11,000 people live there (Census Bureau, ACS 2020-2024). Median household income is $157,923 (Census Bureau, ACS 2020-2024). By Census place, its land lies in Oyster Bay Cove (28%), Upper Brookville (27%), Cove Neck (12%), Centre Island (10%) and Oyster Bay (10%), and 13% in smaller places.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Oyster Bay · its only residential ZIP
- County
- Nassau County
- Census places
- Oyster Bay Cove (28%); Upper Brookville (27%); Cove Neck (12%); Centre Island (10%)
- Metro area
- New York-Newark-Jersey City, NY-NJ
- House district
- NY-3 119th Congress
- State
- New York
- Time zone
- Eastern
- Land area
- 10.8 sq mi · 1,006 people per sq mi
Where is ZIP code 11771?
11771 centers on 40.874°, -73.525° and covers 10.8 square miles of land plus 3.3 of water. It borders 6 ZIP codes: 11765, 11732, 11709, 11560, 11791, 11545.
The map draws ZIP code areas only. For the streets inside 11771, 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 11771 compare with the rest of Nassau County?
| Measure | 11771 | In Nassau County | In NY |
|---|---|---|---|
| People (ACS 2020-2024) | 10,908 | 42nd of 70 | 494th of 1,826 |
| Median household income | $158k | 23rd of 58 | 84th of 1,081 |
| Median home value | $936k | 18th of 62 | 87th of 1,172 |
Its median household income is higher than in 97% of U.S. residential ZIP codes, and it is denser than 78% 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 11771?
The 2020 Census counted 10,322 people in 11771; the ACS, which samples households over 2020-2024, estimates 10,908. Between the 2010 and 2020 censuses its population grew 3.1% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 10,908±1,226 (90% margin)
- 2020 Census count
- 10,322+3.1% since 2010 (10,007)
- Households
- 3,961
- Median age
- 41.1
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 11771?
Of the 10,908 people the ACS estimates in 11771, 22.9% are under 18 and 19.4% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (65.6%), then Hispanic or Latino (20.7%).
- Under 1822.9%
- 18 to 6457.7%
- 65 and older19.4%
- White, not Hispanic65.6%
- Hispanic or Latino20.7%
- Other or two or more6.0%
- Asian, not Hispanic5.2%
- Black, not Hispanic2.5%
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 11771 earn?
Median household income is $157,923 (ACS 2020-2024), the 23rd highest of the 58 ranked ZIP codes in Nassau County. It is not measurably different from 2015-2019 ($149,056 in 2024 dollars): the change is within the surveys' margins of error.
- Median household income
- $157,923±$22,956
- Income per person
- $92,894
- Below the poverty line
- 5.4%
- Unemployed (of the labor force)
- 3.4%
- Adults 25+ with a bachelor's degree
- 58.2%
- Adjusted gross income per tax return, 2022
- $330,9085,220 returns; wages 47% 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 11771?
FHFA's house price index for 11771, built from repeat sales and appraisals of the same homes, rose 65% from 2015 to 2025 and rose 45% from 2020 to 2025, and moved +9.3% in 2025.
- Median home value (owners' estimate)
- $936,300
- Median gross rent
- $2,017
- Homes owned by their occupants
- 74.6%
- Housing units
- 4,225
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 11771?
430 business establishments had a location in this ZIP code in 2023, 40 fewer than in 2018; the most are in professional, scientific, and technical services (ZIP Code Business Patterns).
- Professional, scientific, and technical services64
- Other services (except public administration)52
- Health care and social assistance47
- Accommodation and food services42
- Retail trade40
- Construction31
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 11771?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 11765 | Mill Neck | 683 | $197k | 1.9 mi |
| 11732 | East Norwich | 3,228 | $149k | 2.3 mi |
| 11709 | Bayville | 6,744 | $149k | 2.8 mi |
| 11560 | Locust Valley | 7,696 | $164k | 3.3 mi |
| 11791 | Syosset | 25,520 | $203k | 3.4 mi |
| 11545 | Glen Head | 12,172 | $183k | 4.7 mi |
| 11724 | Cold Spring Harbor | 3,073 | $250k+ | 3.7 mi (near) |
| 11797 | Woodbury | 9,402 | $193k | 4.6 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.