West Islip, NY Profile: Facts & Data

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West Islip, New York - Basic Facts

The West Islip Census Designated Place had a population of 28,162 as of July 1, 2019. West Islip ranks in the upper quartile for Population Density when compared to the other cities, towns and Census Designated Places (CDPs) in New York. See peer rankings below.

The primary coordinate point for West Islip is located at latitude 40.7062 and longitude -73.3062 in Suffolk County. The formal boundaries for the West Islip Census Designated Place encompass a land area of 6.32 sq. miles and a water area of 0.44 sq. miles. Suffolk County is in the Eastern time zone (GMT -5). The elevation is 20 feet.

The West Islip Census Designated Place (GNIS ID: 2390479) has a U1 Census Class Code which indicates a census designated place with an official federally recognized name. It also has a Functional Status Code of "S" which identifies a statistical entity.

The West Islip Census Designated Place is located within Town of Islip, a minor civil division (MCD) of Suffolk County.


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  1. West Islip 2019 Demographic Data
  2. Growth Rates for West Islip (Historical & 5-Year Forecast)
  3. Peer Comparisons (Rank and Percentile)
  1. Neighborhoods Demographics (Home Values, Household Income, etc.)
  2. New York Research Tools (Easy Tools & Current Data)
  3. New York Data Comparison Tool - 2019 Demographics

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Boundary Maps, Demographic Data, School Zones Review maps and data for the neighborhood, city, county, ZIP Code, and school zone. July 1, 2019, data includes home values, household income, percentage of homes owned, rented or vacant, etc.


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West Islip, NY Data & Demographics (As of July 1, 2019)

HOUSING AFFORDABILITY INDEX

West Islip, NY Housing Affordability Index is 101
State of New York Housing Affordability Index is 85
The Housing Affordability Index base is 100 and represents a balance point where a resident with a median household income can normally qualify to purchase a median price home. Values above 100 indicate increased affordability, while values below 100 indicate decreased affordability.

WEALTH INDEX

West Islip, NY Wealth Index is 224
State of New York Wealth Index is 109
The Wealth Index is based on a number of indicators of affluence including average household income and average net worth, but it also includes the value of material possessions and resources. It represents the wealth of the area relative to the national level. Values above or below 100 represent above-average wealth or below-average wealth compared to the national level.

These new demographic attributes are availiable for cities, Counties, ZIP Codes and even neighborhoods (Census Blocks) when you search by a specific New York address.

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  2. References & Data Sources page for more information about methodology and sources of data.

POPULATION

Total Population 28,162
Population in Households 27,757
Population in Familes 25,341
Population in Group Qrtrs 405
Population Density 4,468
Diversity Index1 24
 

INCOME

Median Household Income $116,445
Average Household Income $145,670
Per Capita Income $46,209
Wealth Index3 224

HOUSING

Total Housing Units 9,296 (100%)
Owner Occupied HU 8,306 (89.4%)
Renter Occupied HU 624 ( 6.7%)
Vacant Housing Units 366 ( 3.9%)
Median Home Value $443,395
Housing Affordability Index2 101
 

HOUSEHOLDS

Total Households 8,930
Average Household Size 3.11
Family Households 7,324
Average Family Size 3
NOTES
  1. The Diversity Index is a scale of 0 to 100 that represents the likelihood that two persons, chosen at random from the same area, belong to different race or ethnic groups. If an area's entire population belongs to one race AND one ethnic group, then the area has zero diversity. An area's diversity index increases to 100 when the population is evenly divided into two or more race/ethnic groups.
  2. The Housing Affordability Index base is 100 and represents a balance point where a resident with a median household income can normally qualify to purchase a median price home. Values above 100 indicate increased affordability, while values below 100 indicate decreased affordability.
  3. The Wealth Index is based on a number of indicators of affluence including average household income and average net worth, but it also includes the value of material possessions and resources. It represents the wealth of the area relative to the national level. Values above or below 100 represent above-average wealth or below-average wealth compared to the national level.

GROWTH RATE / YEAR

2010-2019 2019-2024
Population -0.07% -0.2%
Households -0.13% -0.26%
Families -0.2% -0.3%
Median Household Income   2.07%
Per Capita Income   2.06%

West Islip, NY - Peer Comparisons by Rank and Percentile

The table below compares West Islip to the other 1,195 incorporated cities, towns and CDPs in New York by rank and percentile using July 1, 2019 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.

Variable Description Rank Percentile
Total Population # 49 96th
Population Density # 161 87th
Diversity Index # 601 50th
Median Household Income # 171 86th
Per Capita Income # 276 77th

Additional comparisons and rankings can be made with a VERY EASY TO USE New York Census Data Comparison Tool.

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