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CITY · 1990 CENSUS

Islip

New York · 18,924 residents · 4.749 sq mi
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The short version

Islip is significantly wealthier than the US average, with a median household income of $50,459. Population has declined 8% since 2000. Median home value is $154,500. Poverty is rare here, at 3.5% of residents. Households here earn about 53% more than the New York median.

At a glance
Wealthier
above the US median
US median: $30,130
Mid-age
median age 32.1
US median: 33.0
Average education
19% hold a bachelor's degree
US average: 20%
Stable housing
home values roughly flat, inflation adjusted
US median home: $93,722
Section 01

Population & growth

Total population
18,924
−8%vs 2000
vs 20,575 in 2000
1990 – 2024
Median age
32.1
−11%vs 2000
vs 36.1 in 2000
US average: 33.0
Population, 1990 – 2024
17K18K19K20K21K1990201020202024Islip
202417K
1990201020202024
Age distribution, 1990
Under 58%(1,519)
US avg: 7.3%
5 to 96%(1,143)
US avg: 7.3%
10 to 146%(1,139)
US avg: 6.9%
15 to 197%(1,328)
US avg: 7.1%
20 to 248.5%(1,600)
US avg: 7.5%
25 to 3419.6%(3,716)
US avg: 17.5%
35 to 4413.4%(2,534)
US avg: 15.1%
45 to 5413.1%(2,479)
US avg: 10.2%
55 to 649%(1,707)
US avg: 8.5%
65 to 745.4%(1,028)
US avg: 7.3%
75 to 842.9%(557)
US avg: 4%
85 and over0.9%(174)
US avg: 1.2%
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 02

Income & economy

Median household income
$50,459
+1%inflation adjusted, since 2000
vs $65,657 in 2000
US average: $30,130
1990 – 2024
Per capita income
$18,515
−27%vs 2000
vs $25,383 in 2000
US average: $14,340
Poverty rate
3.5%
−0.6 ptsvs 2000
vs 4.1% in 2000
US average: 13.2%
Section 03

Housing

Median home value
$154,500
+18%inflation adjusted, since 2000
vs $171,800 in 2000
US average: $93,722
1990 – 2024
Median gross rent
$794
+10%inflation adjusted, since 2000
vs $948 in 2000
US average: $450
Owner-occupied
78.5%
+4.5 ptsvs 2000
vs 74.0% in 2000
21.5% rent
RELATED:See current rent listings in Islip on RentDataNow
Section 04

Race & ethnicity

2000
White, non-Hispanic81.3%(16,721)
Black4.6%(937)
Hispanic / Latino10.7%(2,195)
Asian2%(410)
Other0%
1990
White, non-Hispanic93%(17,594)
Black3.3%(622)
Hispanic / Latino7.2%(1,371)
Asian1.2%(224)
Other2.6%(484)

No data for the years selected.

Section 04 · Origins

Detailed origins & ancestry

Detailed origin tables are available for 2024; showing 2024 data.

Hispanic origin
Puerto Rican8.8%(1,527)
Colombian2.9%(497)
Salvadoran2.3%(402)
Ecuadorian1.1%(188)
Guatemalan1.1%(187)
Cuban0.7%(126)
Mexican0.7%(114)
Nicaraguan0.6%(109)
Peruvian0.6%(106)
Honduran0.4%(70)
+ 5 more hispanic origin groups with data
Dominican0.3%(59)
Venezuelan0.2%(34)
Chilean0.2%(30)
Panamanian0.1%(23)
Spaniard0.1%(17)
Asian origin
Asian Indian2.9%(497)
Pakistani1.1%(190)
Filipino0.8%(136)
Bangladeshi0.5%(87)
Chinese0.5%(80)
Vietnamese0.4%(62)
Ancestry
Italian23.8%(4,133)
Irish19.1%(3,323)
German12.8%(2,228)
English3.6%(623)
American3.1%(541)
Polish2.8%(479)
West Indian1.8%(319)
Jamaican1.7%(289)
Greek1.5%(268)
Scottish1.3%(224)
French1%(180)
Czech0.7%(128)
+ 24 more ancestry groups with data
Swedish0.6%(112)
Lithuanian0.6%(102)
Romanian0.6%(99)
Hungarian0.5%(88)
Russian0.5%(88)
Dutch0.3%(53)
British0.3%(49)
Portuguese0.3%(47)
Austrian0.2%(39)
Arab0.2%(31)
Scotch-Irish0.2%(31)
Latvian0.2%(30)
Norwegian0.2%(28)
Swiss0.1%(25)
Nigerian0.1%(24)
Egyptian0.1%(21)
Haitian0.1%(19)
Turkish0.1%(17)
Welsh0.1%(13)
Lebanese0.1%(10)
Ukrainian0.1%(9)
RANKED:Largest Italian population · Largest Irish population · Largest German population · Largest Puerto Rican population · Largest South American population
Section 05

Education

Bachelor's degree or higher
19.0%
−4.5 ptsvs 2000
vs 23.6% in 2000
US average: 20.3%
High school or higher
84.6%
−3.6 ptsvs 2000
vs 88.3% in 2000
US average: 75.2%
Graduate degree
6.7%
−4.0 ptsvs 2000
vs 10.8% in 2000
US average: 7.1%
Section 06

Commute & transportation

Average commute
25.2 min
+9%vs 2000
vs 23.1 min in 2000
US average: 21.9
Section 07

Work & employment

No data for the years selected.

Section 08

People & community

No data for the years selected.

Marital status (2024)
Men 15+
Never married36.2%(2,640)
Married55.1%(4,023)
Widowed1.5%(113)
Divorced7.2%(524)
Women 15+
Never married28.9%(2,095)
Married51.6%(3,745)
Widowed10.6%(768)
Divorced9%(650)
SHARE WITHIN EACH SEX · POPULATION 15 AND OVER · 2024
Drill deeper

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Pop 19,291
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Pop 19,796
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Places similar to Islip
Head to head

Compare Islip to nearby cities

ISLIP VS
East Islip
Income$147,996+193%
Home value$593,200+284%
Population13,573−22%
SEE FULL COMPARISON →
ISLIP VS
Bay Shore
Income$105,618+109%
Home value$492,200+219%
Population31,683+82%
SEE FULL COMPARISON →
ISLIP VS
North Bay Shore
Income$141,915+181%
Home value$497,600+222%
Population20,282+17%
SEE FULL COMPARISON →
ISLIP VS
Central Islip
Income$113,707+125%
Home value$436,400+182%
Population38,373+121%
SEE FULL COMPARISON →
Frequently asked

How many people live in Islip, New York?

Islip, New York has about 18,924 residents according to the 1990 Census.

What is the median household income in Islip, New York?

The typical household in Islip, New York earns about $50,459 a year. Half of households make more than that, and half make less.

Is Islip, New York expensive?

In Islip, New York, the median home is worth about $154,500, and the typical rent is about $794 a month.

How educated are people in Islip, New York?

About 19.0% of adults age 25 and over in Islip, New York hold a bachelor's degree or higher.

What is the poverty rate in Islip, New York?

About 3.5% of people in Islip, New York live below the federal poverty line.

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DATA: US CENSUS BUREAU ACS 5-YEAR + DECENNIAL CENSUS · UPDATED 2024

How we source and harmonize this data →