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ZIP CODE TABULATION AREA

11721

New York · 6,426 residents · 2.509 sq mi
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ZIP 11721 is significantly wealthier than the US average, with a median household income of $197,179. Population has held roughly steady since 2024. 71% of adults hold a bachelor's degree or higher, well above the national rate of 36%. Median home value is $740,300. With a median age of 50.2, the population is older than the US median of 38.9. Households here earn about 51% more than the Suffolk County median. Among the 97 ZIP codes in Suffolk County, 11721 ranks 4th by median household income.

$197,179
US average: $82,259
$740,300
US average: $376,019
71.4%
US average: 35.6%
Age, sex & households
Under 18
19.8%
Age 65+
20.9%
50.3%
49.7%
2.66 people
Race & ethnicity · 2024
2024
White, non-Hispanic78.4%(5,041)
Black1.8%(114)
Hispanic / Latino10.1%(650)
Asian1.2%(74)
Other8.5%(547)
Diversity Score45.8%(2,945)
Housing
Commute & vehicles
Work & employment
People & community
Affordability & inequality
Within Suffolk County
Income rank vs other ZIPs
LOWEST4TH OF 97HIGHEST
Adjacent ZIPs
06390$98,125
11701$117,033
11702$137,652
11703$137,158
Frequently asked

How many people live in ZIP code 11721?

ZIP code 11721 has about 6,426 residents according to the 2024 American Community Survey.

What is the median household income in ZIP code 11721?

The typical household in ZIP code 11721 earns about $197,179 a year. Half of households make more than that, and half make less.

Is ZIP code 11721 expensive?

In ZIP code 11721, the median home is worth about $740,300, and the typical rent is about $3,501 a month.

How educated are people in ZIP code 11721?

About 71.4% of adults age 25 and over in ZIP code 11721 hold a bachelor's degree or higher.

What is the poverty rate in ZIP code 11721?

About 4.1% of people in ZIP code 11721 live below the federal poverty line.

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DATA: US CENSUS BUREAU ACS 5-YEAR · ZCTA · UPDATED 2024