Central Islip CDP, New York Demographics & Population 2026

Name: Central Islip CDP, New York Demographics
Creator: U.S. Census Bureau
License: https://www.census.gov/data/developers/about/terms-of-service.html

As of 2026, Central Islip CDP, New York has a total population of 37,751, the 26th largest city in New York, with a median household income of $110,166, which is 30% higher than the state average. The poverty rate is 9.3%.

Key Takeaways

Household income is 30% above the state average — one of the wealthiest communities in New York.

Central Islip CDP Quick Facts

Population 37,751

Median Household Income $110,166

Median Home Value $405,000

Poverty Rate 9.3%

Unemployment Rate 5.6%

Median Age 33.9 years

Homeownership Rate 77.1%

Affordability Ratio 3.7x

Bachelor's Degree or Higher 18.4%

High School Graduation Rate 76.9%

Diversity Index 56/100

Population 37,751 26th of 1,287

Median Income $110,166 top 30%

Poverty Rate 9.3% 25% lower national

Median Home Value $405,000 above average

How Central Islip CDP Compares

Median Household Income

Central Islip CDP

$110,166

$84,578

National

$78,538

Median Home Value

Central Islip CDP

$405,000

$403,000

National

$303,400

Economy & Housing

Household Income Distribution

Under $25K 11.3%

$25K-$50K 8.1%

$50K-$100K 26.7%

$100K+ 53.9%

Employment

5.6% Unemployment Rate State: 6.2% | National: 5.2%

66.2% Labor Force Participation

Housing Overview

Owner 77.1%

Renter 22.9%

Affordability Index Affordable

3.7x home value to income ratio

People & Demographics

Age Distribution

Under 18

25.6%

18-34

25.4%

35-54

27.6%

55-74

17.0%

75+

4.5%

Race & Ethnicity

Diversity Index

High Diversity

A diverse community with significant representation from multiple racial and ethnic groups.

State average: 65 | National average: 60

Education

Educational Attainment (Adults 25+)

Central Islip CDP Rankings in New York

#26 Population of 1,287

#368 Median Income of 1,287

#1074 Education of 1,287

#393 Home Value of 1,287

Explore New York Rankings

Cities by Population All cities ranked by size Richest Cities Ranked by median income Most Educated By bachelor's degree rate Most Affordable By housing affordability

Cities Similar to Central Islip CDP

These cities in the same state have comparable population and economic profiles.

City	Population	Median Income	Home Value	Bachelor's+	Poverty
Elmont CDP	36,436	$120,917	$576,800	33.0%	4.2%
Coram CDP	41,527	$107,159	$425,300	37.0%	8.6%
East Meadow CDP	35,806	$128,770	$613,900	44.2%	6.9%
Uniondale CDP	33,637	$115,037	$511,300	26.5%	10.5%
Valley Stream village	40,278	$127,426	$605,000	38.2%	3.5%

Population Overview

Central Islip CDP is a mid-sized community located in New York. The total population is 37,751. It ranks as the 26th most populous out of 1,287 cities and towns in New York.

Age Demographics

The median age in Central Islip CDP is 33.9 years. This is 14% lower than the state median of 39.6 years.

Economy, Income & Housing

The median household income in Central Islip CDP is $110,166. This is 30% higher than the state median of $84,578. Compared to the national median of $78,538, household income here is 40% higher. The poverty rate stands at 9.3%. This is 32% lower than the state poverty rate of 13.7%. The unemployment rate is 5.6%. This is 10% lower than the state rate of 6.2%. The median home value is $405,000. Housing costs are about average than the state median of $403,000. The home-value-to-income ratio is 3.7x. 77.1% of occupied housing units are owner-occupied. This homeownership rate is 42% higher than the state average of 54.3%.

Race & Ethnicity

The largest racial or ethnic group in Central Islip CDP is Hispanic or Latino, making up 61.7% of the population. Black or African American residents account for 17.4%. The White (non-Hispanic) population (15.8%) is well below the state average of 53.4%. The Hispanic or Latino population is significantly higher than the state average (61.7% vs 19.6%). The Asian population (1.8%) is well below the state average of 8.8%.

Education

18.4% of residents aged 25 and older hold a bachelor's degree or higher. This is 54% lower than the state rate of 39.6%. Nationally, 35.0% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 76.9%.

Data Sources & Methodology

All demographic data for Central Islip CDP, New York is sourced from the U.S. Census Bureau's American Community Survey (ACS) 5-Year Estimates (2019-2023). The ACS collects data from approximately 3.5 million households annually, providing reliable estimates for communities of all sizes. Comparisons are made against New York state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 1,287 Census-designated places in New York. For official data, visit data.census.gov.

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Frequently Asked Questions

What is the population of Central Islip CDP, New York?

Central Islip CDP, New York has a population of 37,751 according to the most recent U.S. Census ACS 5-Year Estimates.

What is the median household income in Central Islip CDP, NY?

The median household income in Central Islip CDP is $110,166, which is 40% higher the national median of $78,538.

What is the poverty rate in Central Islip CDP, NY?

The poverty rate in Central Islip CDP is 9.3%. This means approximately 3,448 residents live below the federal poverty line.

What is the racial makeup of Central Islip CDP, New York?

Central Islip CDP's population is 15.8% White, 17.4% Black, 61.7% Hispanic/Latino, and 1.8% Asian.

What is the median home value in Central Islip CDP, NY?

The median home value in Central Islip CDP is $405,000. The home-value-to-income ratio is 3.7x.

How educated is Central Islip CDP, New York?

18.4% of adults (25+) in Central Islip CDP hold a bachelor's degree or higher, and 7.2% hold a graduate or professional degree.