Islip CDP, New York demographics
Population: 17,441
Median age: 44.6
Median household income: 111,549
Islip is a CDP in Suffolk County, New York, United States.
Demographics, population, home values, social and economic characteristics of Islip CDP, NY.
Population
| 2021 | 17,441 |
| 2020 | 16,965 |
| 2019 | 17,853 |
| 2018 | 17,921 |
| 2017 | 18,254 |
| 2016 | 18,026 |
| 2015 | 18,433 |
| 2014 | 18,229 |
| 2013 | 18,563 |
| 2012 | 18,862 |
| 2011 | 19,278 |
| 2010 | 18,970 |
| 2009 | 21,097 |
Census data for Islip CDP, New York
Demographic and housing estimates in Islip CDP, New York
| Total population | 17,441 |
| Male | 8,409 |
| Female | 9,032 |
| Total population | 17,441 |
| Under 5 years | 855 |
| 5 to 9 years | 842 |
| 10 to 14 years | 949 |
| 15 to 19 years | 837 |
| 20 to 24 years | 1,046 |
| 25 to 34 years | 1,926 |
| 35 to 44 years | 2,387 |
| 45 to 54 years | 2,509 |
| 55 to 59 years | 1,303 |
| 60 to 64 years | 1,604 |
| 65 to 74 years | 1,903 |
| 75 to 84 years | 822 |
| 85 years and over | 458 |
| Median age (years) | 44.6 |
| Under 18 years | 3,240 |
| 16 years and over | 14,542 |
| 18 years and over | 14,201 |
| 21 years and over | 13,822 |
| 62 years and over | 4,004 |
| 65 years and over | 3,183 |
| Total population | 17,441 |
| One race | 15,977 |
| White | 13,883 |
| Black or African American | 534 |
| American Indian and Alaska Native | 0 |
| Asian | 631 |
| Native Hawaiian and Other Pacific Islander | 0 |
| Some other race | 929 |
| Two or more races | 1,464 |
| Citizen, VOTING AGE 18 and over population | 13,288 |
| Male Citizen, VOTING AGE 18 and over population | 6,271 |
| Female Citizen, VOTING AGE 18 and over population | 7,017 |
Social characteristics in Islip CDP, New York
| Total households | 6,150 |
| Family households (families) | 3,711 |
| Married-couple family | 223 |
| Male householder, no wife present, family | 803 |
| Female householder, no husband present, family | 618 |
| Nonfamily households | 1,413 |
| Average household size | 2,326 |
| Average family size | 2.83 |
Economic characteristics in Islip CDP, New York
| Total households | 6,150 |
| Less than $10,000 | 99 |
| $10,000 to $14,999 | 38 |
| $15,000 to $24,999 | 211 |
| $25,000 to $34,999 | 272 |
| $35,000 to $49,999 | 562 |
| $50,000 to $74,999 | 673 |
| $75,000 to $99,999 | 790 |
| $100,000 to $149,999 | 1,507 |
| $150,000 to $199,999 | 884 |
| $200,000 or more | 1,114 |
| Median household income (dollars) | 111,549 |
Housing characteristics in Islip CDP, New York
| Total housing units | 6,506 |
| Occupied housing units | 6,150 |
| Vacant housing units | 356 |
| Total housing units | 6,506 |
| 1-unit, detached | 4,868 |
| 1-unit, attached | 459 |
| 2 units | 137 |
| 3 or 4 units | 361 |
| 5 to 9 units | 95 |
| 10 to 19 units | 156 |
| 20 or more units | 342 |
| Mobile home | 88 |
| Boat, RV, van, etc. | 0 |
| Total housing units | 6,506 |
| Built 2014 or later | 0 |
| Built 2010 to 2013 | 45 |
| Built 2000 to 2009 | 200 |
| Built 1990 to 1999 | 323 |
| Built 1980 to 1989 | 724 |
| Built 1970 to 1979 | 977 |
| Built 1960 to 1969 | 1,755 |
| Built 1950 to 1959 | 1,245 |
| Built 1940 to 1949 | 338 |
| Built 1939 or earlier | 899 |
| Total housing units | 6,506 |
| 1 room | 79 |
| 2 rooms | 82 |
| 3 rooms | 565 |
| 4 rooms | 646 |
| 5 rooms | 626 |
| 6 rooms | 1,347 |
| 7 rooms | 1,090 |
| 8 rooms | 806 |
| 9 rooms or more | 1,265 |
| Median rooms | 6.4 |
| Total housing units | 6,506 |
| No bedroom | 108 |
| 1 bedroom | 663 |
| 2 bedrooms | 1,411 |
| 3 bedrooms | 2,258 |
| 4 bedrooms | 1,682 |
| 5 or more bedrooms | 384 |
| Occupied housing units | 6,150 |
| Owner-occupied | 5,386 |
| Renter-occupied | 764 |
| Average household size of owner-occupied unit | 2.89 |
| Average household size of renter-occupied unit | 2.41 |
| Occupied housing units | 6,150 |
| Moved in 2017 or later | 273 |
| Moved in 2015 to 2016 | 922 |
| Moved in 2010 to 2014 | 565 |
| Moved in 2000 to 2009 | 1,616 |
| Moved in 1990 to 1999 | 886 |
| Moved in 1989 and earlier | 1,888 |
| Owner-occupied units | 5,386 |
| Less than $50,000 | 186 |
| $50,000 to $99,999 | 5 |
| $100,000 to $149,999 | 180 |
| $150,000 to $199,999 | 210 |
| $200,000 to $299,999 | 512 |
| $300,000 to $499,999 | 3,142 |
| $500,000 to $999,999 | 1,089 |
| $1,000,000 or more | 62 |
| Median (dollars) | 398,900 |
| Owner-occupied units | 5,386 |
| Housing units with a mortgage | 3,300 |
| Housing units without a mortgage | 2,086 |
| Occupied units paying rent | 733 |
| Less than $500 | 0 |
| $500 to $999 | 0 |
| $1,000 to $1,499 | 80 |
| $1,500 to $1,999 | 311 |
| $2,000 to $2,499 | 278 |
| $2,500 to $2,999 | 37 |
| $3,000 or more | 27 |
| Median (dollars) | 1,961 |
| No rent paid | 31 |
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