Residential delivery area · New York
ZIP Code 11803: Plainview, NY
ZIP code 11803 is in Plainview, New York, entirely in Nassau County (Census 2020 ZIP-county file). About 30,000 people live there (Census Bureau, ACS 2020-2024). Median household income is $187,514 (Census Bureau, ACS 2020-2024). By Census place, 91% of its land lies in Plainview (a census-designated place), and 9% in smaller places.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Plainview · its only residential ZIP
- County
- Nassau County
- Census places
- Plainview census-designated place
- Metro area
- New York-Newark-Jersey City, NY-NJ
- House district
- NY-3 119th Congress
- State
- New York
- Time zone
- Eastern
- Land area
- 6.2 sq mi · 4,824 people per sq mi
Where is ZIP code 11803?
11803 centers on 40.782°, -73.473° and covers 6.2 square miles of land plus 0.0 of water. It borders 6 ZIP codes: 11804, 11797, 11714, 11801, 11747, 11791.
The map draws ZIP code areas only. For the streets inside 11803, 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 11803 compare with the rest of Nassau County?
| Measure | 11803 | In Nassau County | In NY |
|---|---|---|---|
| People (ACS 2020-2024) | 29,713 | 19th of 70 | 212th of 1,826 |
| Median household income | $188k | 9th of 58 | 35th of 1,081 |
| Median home value | $800k | 25th of 62 | 138th of 1,172 |
Its median household income is higher than in 99% of U.S. residential ZIP codes, and it is denser than 93% 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 11803?
The 2020 Census counted 30,049 people in 11803; the ACS, which samples households over 2020-2024, estimates 29,713. Between the 2010 and 2020 censuses its population grew 6.8% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 29,713
- 2020 Census count
- 30,049+6.8% since 2010 (28,127)
- Households
- 10,237
- Median age
- 46.6
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 11803?
Of the 29,713 people the ACS estimates in 11803, 22.0% are under 18 and 24.3% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (71.2%), then Asian (not Hispanic) (21.1%).
- Under 1822.0%
- 18 to 6453.7%
- 65 and older24.3%
- White, not Hispanic71.2%
- Asian, not Hispanic21.1%
- Hispanic or Latino5.2%
- Other or two or more2.0%
- Black, not Hispanic0.4%
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 11803 earn?
Median household income is $187,514 (ACS 2020-2024), the 9th highest of the 58 ranked ZIP codes in Nassau County. It is not measurably different from 2015-2019 ($180,943 in 2024 dollars): the change is within the surveys' margins of error.
- Median household income
- $187,514
- Income per person
- $78,137
- Below the poverty line
- 3.4%
- Unemployed (of the labor force)
- 4.3%
- Adults 25+ with a bachelor's degree
- 66.8%
- Adjusted gross income per tax return, 2022
- $166,92115,290 returns; wages 64% 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 11803?
FHFA's house price index for 11803, built from repeat sales and appraisals of the same homes, rose 77% from 2015 to 2025 and rose 49% from 2020 to 2025, and moved +7.7% in 2025.
- Median home value (owners' estimate)
- $800,200
- Median gross rent
- $3,392
- Homes owned by their occupants
- 93.6%
- Housing units
- 10,666
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 11803?
1,505 business establishments had a location in this ZIP code in 2023, 3 fewer than in 2018; the most are in professional, scientific, and technical services (ZIP Code Business Patterns).
- Professional, scientific, and technical services222
- Health care and social assistance210
- Wholesale trade166
- Retail trade147
- Construction102
- Other services (except public administration)102
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 11803?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 11804 | Old Bethpage | 4,835 | $191k | 1.8 mi |
| 11797 | Woodbury | 9,402 | $193k | 2.7 mi |
| 11714 | Bethpage | 22,695 | $120k | 2.8 mi |
| 11801 | Hicksville | 41,585 | $146k | 3.0 mi |
| 11747 | Melville | 20,513 | $160k | 3.3 mi |
| 11791 | Syosset | 25,520 | $203k | 3.5 mi |
| 11753 | Jericho | 12,435 | $176k | 3.6 mi (near) |
| 11735 | Farmingdale | 32,028 | $139k | 4.0 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.