Residential delivery area · New York
ZIP Code 11978: Westhampton (Westhampton Beach), NY
ZIP code 11978 is in Westhampton (postal name Westhampton Beach), New York, entirely in Suffolk County (Census 2020 ZIP-county file). About 4,700 people live there (Census Bureau, ACS 2020-2024). Median household income is $125,179 (Census Bureau, ACS 2020-2024). By Census place, its land lies in Westhampton (53%), Westhampton Beach (29%), Quiogue (12%) and West Hampton Dunes (3%), and 3% in smaller places.
- ACS2020-24
- Census2020
- FHFA2024
- ZBP2023
- IRS2022
- Town
- Westhampton Beach · its only residential ZIP
- County
- Suffolk County
- Census places
- Westhampton (53%) census-designated place; Westhampton Beach (29%); Quiogue (12%) census-designated place; West Hampton Dunes (3%)
- Metro area
- New York-Newark-Jersey City, NY-NJ
- House district
- NY-1 119th Congress
- State
- New York
- Time zone
- Eastern
- Land area
- 10.2 sq mi · 463 people per sq mi
Where is ZIP code 11978?
11978 centers on 40.826°, -72.638° and covers 10.2 square miles of land plus 2.4 of water. It borders 4 ZIP codes: 11959, 11977, 11942, 11901.
The map draws ZIP code areas only. For the streets inside 11978, 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 11978 compare with the rest of Suffolk County?
| Measure | 11978 | In Suffolk County | In NY |
|---|---|---|---|
| People (ACS 2020-2024) | 4,705 | 72nd of 108 | 748th of 1,826 |
| Median household income | $125k | 53rd of 81 | 208th of 1,081 |
| Median home value | $1.05M | 9th of 88 | 59th of 1,172 |
Its median household income is higher than in 92% of U.S. residential ZIP codes, and it is denser than 71% 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 11978?
The 2020 Census counted 4,087 people in 11978; the ACS, which samples households over 2020-2024, estimates 4,705. Its boundary changed between the 2010 and 2020 censuses, so the two counts are not compared.
- People, ACS 2020-2024
- 4,705±676 (90% margin)
- 2020 Census count
- 4,087
- Households
- 1,704
- Median age
- 45.1
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 11978?
Of the 4,705 people the ACS estimates in 11978, 18.0% are under 18 and 26.9% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (70.2%), then Hispanic or Latino (11.8%).
- Under 1818.0%
- 18 to 6455.1%
- 65 and older26.9%
- White, not Hispanic70.2%
- Hispanic or Latino11.8%
- Other or two or more8.7%
- Black, not Hispanic7.6%
- Asian, not Hispanic1.7%
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 11978 earn?
Median household income is $125,179 (ACS 2020-2024), the 53rd highest of the 81 ranked ZIP codes in Suffolk County.
- Median household income
- $125,179±$23,879
- Income per person
- $82,765
- Below the poverty line
- 10.8%
- Unemployed (of the labor force)
- 7.0%
- Adults 25+ with a bachelor's degree
- 57.5%
- Adjusted gross income per tax return, 2022
- $232,3912,160 returns; wages 53% 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 11978?
- Median home value (owners' estimate)
- $1,054,000
- Median gross rent
- $2,150
- Homes owned by their occupants
- 88.2%
- Housing units
- 4,037
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 11978?
340 business establishments had a location in this ZIP code in 2023, 22 more than in 2018; the most are in retail trade (ZIP Code Business Patterns).
- Retail trade52
- Construction50
- Accommodation and food services40
- Other services (except public administration)40
- Administrative and support and waste management and remediation services30
- Professional, scientific, and technical services22
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 11978?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 11959 | Quogue | 734 | $89k | 1.5 mi |
| 11977 | Westhampton | 2,843 | $151k | 2.2 mi |
| 11942 | East Quogue | 5,406 | $94k | 3.8 mi |
| 11901 | Riverhead | 33,091 | $85k | 7.1 mi |
| 11972 | Speonk | 334 | – | 3.3 mi (near) |
| 11960 | Remsenburg | 830 | $240k | 3.7 mi (near) |
| 11941 | Eastport | 2,814 | $124k | 4.5 mi (near) |
| 11940 | East Moriches | 5,819 | $139k | 6.3 mi (near) |
| 11946 | Hampton Bays | 15,819 | $134k | 6.8 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.