Population Statistics for Central Islip, New York in 2024


  • Total population: 38,373, male: 19,415 and female: 18,958
  • Median age: 34.6 years, male: 33.4 and female: 36.1
  • Median household income: $113,707
  • Housing units: 10,660 total, occupied: 9,545 and vacant: 1,115

Population by Age and Gender

In Central Islip, New York, there are 5,193 males under 18 years old (26.7%), 12,425 aged 18 to 64 (64.0%), and 1,797 aged 65 and over (9.3%). Among females, 4,797 are under 18 years old (25.3%), 11,549 aged 18 to 64 (60.9%), and 2,612 aged 65 and over (13.8%).


Population Demographics by Race

Based on the latest data, the population in Central Islip, New York is 14.2% (5,464 people) White. Hispanic or Latino residents account for 63.1% (24,198 people) of the total. Black or African American alone represents 16.9% (6,486 people), while Asian alone makes up 1.8% (676 people).



Household Income

About 18.8% of all households earn under $50,000. Around 24.7% of households have incomes between $50,000 and $100,000, while 38.0% earn between $100,000 and $200,000. A small portion, 18.4%, report incomes over $200,000.




Households and Families

About 56.9% of households are married couples, while 10.8% are headed by a male householder with no spouse present. Female householders account for 21.8% of households, and 10.5% are non-family households.



Marital Status of Population

Overall, 45.2% of men and 39.8% of women are currently married. Among those who have never married, the share is 46.8% for men and 42.7% for women. Divorce rates are 10.7% among women compared to 6.8% for men, while 6.8% of women and 1.2% of men are widowed.



Educational attainment (Age 25+)

Among men: 26.0% have no degree, 32.4% have a high school diploma or equivalent, 24.9% have some college or an associate degree, 11.2% hold a bachelor’s degree, and 5.5% hold a graduate or professional degree. Among women: 21.7% have no degree, 31.0% have a high school diploma or equivalent, 25.3% have some college or an associate degree, 13.3% hold a bachelor’s degree, and 8.8% hold a graduate or professional degree.



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FAQ

What was the population of Central Islip in 2023?

The total population in 2023 was 38,373.

What is the median age in Central Islip?

The median age is 34.6 years.

What is the median household income in Central Islip?

Median household income (in 2023 inflation-adjusted dollars) is $113,707.

What percentage of the population is White in Central Islip?

The White population is 22.1%.

What share of the population is 65 years and over in Central Islip?

Overall 11.5% of the population is 65 years old and over.

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