West Islip, New York Population 2020

27,149
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West Islip is a city located in New York. West Islip has a 2020 population of 27,149. West Islip is currently declining at a rate of 0.00% annually and its population has decreased by -4.19% since the most recent census, which recorded a population of 28,335 in 2010. West Islip reached it's highest population of 28,335 in 2010.

The average household income in West Islip is $134,083 with a poverty rate of 5.24%. The median rental costs in recent years comes to $1,734 per month, and the median house value is $410,600. The median age in West Islip is 43 years, 42 years for males, and 44.3 years for females. For every 100 females there are 92.0 males.

West Islip Demographics

According to the most recent ACS, the racial composition of West Islip was:

  • White: 94.97%
  • Two or more races: 1.49%
  • Other race: 1.41%
  • Asian: 1.19%
  • Black or African American: 0.90%
  • Native American: 0.04%
  • Native Hawaiian or Pacific Islander: 0.00%
The current population of West Islip, New York is 27,149, based on our projections of the latest US Census estimates. The US Census estimates the 2018 population at 27,149.The last official US Census in 2010 recorded the population at 28,335.

West Islip, New York Population 2020

Population by Race

Race Population Percentage
White25,78394.97%
Two or More Races4041.49%
Some Other Race3841.41%
Asian3231.19%
Black or African American2440.90%
American Indian and Alaska Native110.04%
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West Islip Population Pyramid 2020

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West Islip Median Age

43


Total

42


Male

44.3


Female

West Islip Adults

There are 21,567 adults, (4,148 of whom are seniors) in West Islip.

West Islip Age Dependency

55.9

Age Dependency Ratio

23.8

Old Age Dependency Ratio

32

Child Dependency Ratio

West Islip Sex Ratio

Female

14,140

52.08%

Male

13,009

47.92%

West Islip Households and Families

West Islip Renter vs Owner Occupied by Household Type

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West Islip Household Types

Type Owner Renter
Married96.8%3.2%
All94.5%5.5%
Male90.8%9.2%
Non Family90.1%9.9%
Female90.1%9.9%

94.5%

Rate of Home Ownership

Type Count Average Size Owned
All8,4763.1594.5
Married5,4983.5296.8
Non Family1,6011.3490.1
Female9663.5590.1
Male4114.290.8

3.5

Average Family Size

3.15

Average Household Size

3.9%

Unmarried (Opposite Sex)

0.5%

Unmarried (Same Sex)

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West Islip Education

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Education Attained Count Percentage
Less Than 9th Grade3561.87%
9th to 12th Grade6923.63%
High School Graduate5,15927.06%
Some College3,34517.55%
Associates Degree2,08210.92%
Bachelors Degree3,82820.08%
Graduate Degree3,60218.89%
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West Islip Educational Attainment by Race

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Name Total High School Bachelors
White17,44116,6086,868
Hispanic1,1611,027373
Asian243194128
Multiple Races21815646
Other Race1681239
Black14712750
Native American1111

The highest rate of high school graduation is among native american people with a rate of 100.00%.

The highest rate of bachelors degrees is among asian people with a rate of 52.67%.

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Name Average Male Female
Overall$59,500$70,850$50,126
Less Than High School$33,086$39,464$23,750
High School Grad$43,431$58,381$30,362
Some College$59,729$73,472$47,629
Bachelors Degree$60,409$76,553$48,558
Graduate Degree$90,298$101,811$85,159

$59,500

Average Earnings

$70,850

Average Male

$50,126

Average Female

West Islip Language

West Islip Language by Age

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West Islip Language

90.49% of West Islip residents speak only English, while 9.51% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 4.10% of the population.

West Islip Poverty

West Islip Poverty by Race

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Name Total In Poverty Poverty Rate
White23,8291,2145.09%
Hispanic2,1871315.99%
Multiple380359.21%
Other345226.38%
Asian323185.57%
Black20231.49%

5.24%

Overall Poverty Rate

4.12%

Male Poverty Rate

6.30%

Female Poverty Rate

Poverty in West Islip

The race most likely to be in poverty in West Islip is Multiple, with 9.21% below the poverty level.

The race least likely to be in poverty in West Islip is Black, with 1.49% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 0.61%. Among those working part-time, it was 5.41%, and for those that did not work, the poverty rate was 11.13%.

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Name Poverty
Less Than High School16.65%
High School6.00%
Some College4.79%
Bachelors or Greater1.74%
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Name Poverty
Male Unemployed14.53%
Female Unemployed4.46%
Female Employed3.68%
Male Employed1.22%

West Islip Income

West Islip Income by Household Type

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Name Median Mean
Households$115,513$134,083
Families$128,554$145,237
Married Families$141,529-
Non Families$64,386$78,169
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West Islip Marital Status

West Islip Marital Status

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Marriage Rates

53.4%

Overall Marriage Rate

57.0%

Male Marriage Rate

50.2%

Female Marriage Rate

West Islip Married by Age and Sex

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West Islip Marriage

The age group where males are most likely to be married is 55-64, while the female age group most likely to be married is 45-54.

West Islip Marital Status by Race

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West Islip Veterans

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1,305

Number of Veterans

1,272

Male Veterans

33

Female Veterans

War Veterans
Vietnam511
Korea238
World War II125
First Gulf War122
Second Gulf War73
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Age Group Veterans
75+526
65 to 74405
35 to 54171
55 to 64167
18 to 3436
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Name Veterans % of Total
White1,2796.22%
Hispanic845.73%
2 or More269.49%

West Islip Veterans by Education

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4.51%

Veteran Poverty Rate

30.86%

Veteran Disability Rate

West Islip Employment Status

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67.2%

Labor Force Participation

64.6%

Employment Rate

3.9%

Unemployment Rate

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Origin of Non-Citizens

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Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.

Origin of Naturalized Citizens

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88.92%

Born in New York

94.45%

Native Born

5.55%

Foreign Born

1.01%

Non Citizen

4.55%

Naturalized

Place of Birth

94.45% of West Islip residents were born in the United States, with 88.92% having been born in New York. 1.01% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Europe.

Year Population Growth Annual Growth Rate
202027,1490.00%
201927,1490.00%
201827,149320.12%
201727,117-114-0.42%
201627,23170.03%
201527,224-321-1.17%
201427,545-207-0.75%
201327,752-393-1.40%
201228,1452150.77%
201127,930-405-1.43%
201028,3350.00%