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ZIP CODE TABULATION AREA

11721

New York · 6,426 residents · 2.51 sq mi
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With 6,426 people, ZIP 11721 is a ZIP code in Suffolk County. This is an unusually credentialed place: 71% of adults have a four-year degree. 97% of homes are owner-occupied. The median age is 50.2, about 11 years above the US median. The median household earns $197,179, about 140% above the national median. Median rent is $3,500+ a month. Among the 97 ZIP codes in Suffolk County, 11721 ranks 4th by median household income.

$197,179
US average: $82,259
$109,501
US average: $44,673
$740,300
US average: $376,019
71.4%
US average: 35.6%
Land area
2.51 sq mi
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)
46
Our index, 0 to 100. Higher means a more even mix of racial and ethnic groups.
Housing
3.8
Years of local income it takes to buy a local home, on a scale of about 0 to 15. Lower is more affordable.
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