Residential delivery area · New York
ZIP Code 11558: Barnum Island (Island Park), NY
ZIP code 11558 is in Barnum Island (postal name Island Park), New York, entirely in Nassau County (Census 2020 ZIP-county file). About 8,500 people live there (Census Bureau, ACS 2020-2024). Median household income is $111,032 (Census Bureau, ACS 2020-2024). By Census place, its land lies in Barnum Island (58%), Island Park (30%) and Harbor Isle (12%).
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Island Park · its only residential ZIP
- County
- Nassau County
- Census places
- Barnum Island (58%) census-designated place; Island Park (30%); Harbor Isle (12%) census-designated place
- Metro area
- New York-Newark-Jersey City, NY-NJ
- House district
- NY-4 119th Congress
- State
- New York
- Time zone
- Eastern
- Land area
- 1.5 sq mi · 5,693 people per sq mi
Where is ZIP code 11558?
11558 centers on 40.605°, -73.649° and covers 1.5 square miles of land plus 0.4 of water. It borders 1 ZIP code: 11572.
The map draws ZIP code areas only. For the streets inside 11558, 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 11558 compare with the rest of Nassau County?
| Measure | 11558 | In Nassau County | In NY |
|---|---|---|---|
| People (ACS 2020-2024) | 8,454 | 53rd of 70 | 575th of 1,826 |
| Median household income | $111k | 55th of 58 | 286th of 1,081 |
| Median home value | $635k | 46th of 62 | 262nd of 1,172 |
Its median household income is higher than in 87% of U.S. residential ZIP codes, and it is denser than 95% 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 11558?
The 2020 Census counted 8,954 people in 11558; the ACS, which samples households over 2020-2024, estimates 8,454. Between the 2010 and 2020 censuses its population grew 7.0% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 8,454
- 2020 Census count
- 8,954+7.0% since 2010 (8,370)
- Households
- 3,259
- Median age
- 44.1
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 11558?
Of the 8,454 people the ACS estimates in 11558, 17.3% are under 18 and 19.2% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (72.0%), then Hispanic or Latino (16.6%).
- Under 1817.3%
- 18 to 6463.6%
- 65 and older19.2%
- White, not Hispanic72.0%
- Hispanic or Latino16.6%
- Other or two or more5.7%
- Asian, not Hispanic3.1%
- 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 11558 earn?
Median household income is $111,032 (ACS 2020-2024), the 55th highest of the 58 ranked ZIP codes in Nassau County. It is not measurably different from 2015-2019 ($118,243 in 2024 dollars): the change is within the surveys' margins of error.
- Median household income
- $111,032
- Income per person
- $53,121
- Below the poverty line
- 8.5%
- Unemployed (of the labor force)
- 5.6%
- Adults 25+ with a bachelor's degree
- 36.2%
- Adjusted gross income per tax return, 2022
- $97,9344,600 returns; wages 70% 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 11558?
FHFA's house price index for 11558, built from repeat sales and appraisals of the same homes, rose 79% from 2015 to 2025 and rose 34% from 2020 to 2025, and moved +5.1% in 2025.
- Median home value (owners' estimate)
- $635,200
- Median gross rent
- $2,571
- Homes owned by their occupants
- 67.4%
- Housing units
- 3,439
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 11558?
328 business establishments had a location in this ZIP code in 2023, 1 more than in 2018; the most are in other services (except public administration) (ZIP Code Business Patterns).
- Other services (except public administration)57
- Construction44
- Retail trade43
- Accommodation and food services38
- Professional, scientific, and technical services26
- Health care and social assistance23
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 11558?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 11572 | Oceanside | 30,436 | $149k | 1.9 mi |
| 11561 | Long Beach | 38,708 | $142k | 1.0 mi (near) |
| 11518 | East Rockaway | 10,149 | $117k | 2.4 mi (near) |
| 11557 | Hewlett | 8,504 | $176k | 3.2 mi (near) |
| 11559 | Lawrence | 8,878 | $143k | 3.4 mi (near) |
| 11569 | Point Lookout | 945 | $82k | 3.7 mi (near) |
| 11510 | Baldwin | 35,701 | $147k | 3.8 mi (near) |
| 11598 | Woodmere | 13,599 | $190k | 3.8 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.