11722   Zip Code Central Islip Suffolk NY United States

City Central Islip
County Suffolk
State New York
Latitude 40.78358
Longitude -73.19657
Population 39,033
Density 5603.37 people per square mile
Time Zone America/New York
  • All demographic data comes from the 2024 American Community Survey (5-year study).
  • Learn more about each field.
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Household Income

Median household: $114,049
Median individual: $40,148

Race

Mode: 23.9% Multiple

Gender

 50.6% male 

Rent

  $2055 / month  

Median house value: $436,127.0

Age

Median: 34.9 years old

Education

With at least college degree: 19.4%
With STEM degree: 40.9%

Marital Status

 39.0% married 

Never married: 44.8%

Labor Force Participation

 66.0% working 

Unemployed: 6.1%

Average Family Size

 4.55 people 

Commute Time

 27.1 minutes 

Health Care

 10.1% uninsured 

Poverty

 9.2%

All data comes from the SimpleMaps US Zips Comprehensive Database, February 2026.

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