Islip

Population: 17,224
Median household income: $122,596
Median home value: $486,900

Islip, a community in Suffolk County, New York, has 17,224 residents. At $122,596, its median household income sits below Suffolk County's $128,329.

Between 2019 and 2023, Islip's population declined 3.5% from 17,853 to 17,224, while its median home value rose 28.6% from $378,600 to $486,900.

35.0% of adults 25 and older hold a bachelor's degree or higher. Owners occupy 84.5% of the area's occupied homes.

Demographics

ACS 2019–2023

Population: 17,224
Median age: 44.0 yrs
Median household income: $122,596
Median home value: $486,900
Median gross rent: $2,192
Housing units: 6,373
Homeownership rate: 84.5%
Bachelor's degree or higher: 35.0%
Unemployment rate: 4.9%

Trends

ACS 5-year · 2019–2023

Population

17,85317,224

Median household income

$110,387$122,596

Median home value

$378,600$486,900

Median gross rent

$1,620$2,192

Year	Population	Median household income	Median home value	Median gross rent
2019	17,853	$110,387	$378,600	$1,620
2020	16,965	$109,857	$386,100	$1,785
2021	17,441	$111,549	$398,900	$1,961
2022	17,284	$121,259	$458,800	$2,301
2023	17,224	$122,596	$486,900	$2,192

Each year is a US Census Bureau ACS 5-year estimate ending that year.

Age distribution

Under 55.5%

5 to 1713.5%

18 to 246.4%

25 to 3413.1%

35 to 4412.7%

45 to 5412.2%

55 to 6418.2%

65 to 7410.9%

75 and over7.6%

	Count	Share
Under 5	949	5.5%
5 to 17	2,333	13.5%
18 to 24	1,110	6.4%
25 to 34	2,250	13.1%
35 to 44	2,179	12.7%
45 to 54	2,095	12.2%
55 to 64	3,131	18.2%
65 to 74	1,870	10.9%
75 and over	1,307	7.6%

Race & ethnicity

	Count	Share
White (non-Hispanic)	12,181	70.7%
Black or African American	623	3.6%
American Indian & Alaska Native	0	0.0%
Asian	797	4.6%
Native Hawaiian & Pacific Islander	0	0.0%
Some other race	39	0.2%
Two or more races	234	1.4%
Hispanic or Latino (any race)	3,350	19.4%

Educational attainment (age 25+)

No high school diploma13.0%

High school graduate26.3%

Some college or associate's25.7%

Bachelor's degree21.6%

Graduate or professional degree13.3%

	Count	Share
No high school diploma	1,674	13.0%
High school graduate	3,381	26.3%
Some college or associate's	3,292	25.7%
Bachelor's degree	2,776	21.6%
Graduate or professional degree	1,709	13.3%

Commute to work

Mean travel time to work: 29 min

Drove alone78.5%

Carpooled7.9%

Public transit3.6%

Walked1.1%

Bicycle0.2%

Worked from home8.2%

Other means0.5%

How workers get to work

	Count	Share
Drove alone	7,016	78.5%
Carpooled	707	7.9%
Public transit	321	3.6%
Walked	100	1.1%
Bicycle	18	0.2%
Worked from home	730	8.2%
Other means	43	0.5%

Travel time

	Count	Share
Under 15 min	1,687	20.6%
15 to 29 min	2,993	36.5%
30 to 44 min	2,151	26.2%
45 to 59 min	429	5.2%
60+ min	945	11.5%

Households

Average household size: 2.82
Poverty rate: 5.8% (991 of 17,185)

	Count	Share
Family households	4,328	71.1%
Nonfamily households	1,763	28.9%

Housing

Median year structure built: 1965

Occupancy

	Count	Share
Occupied	6,091	95.6%
Vacant	282	4.4%

Tenure (of occupied units)

	Count	Share
Owner-occupied	5,145	84.5%
Renter-occupied	946	15.5%

1-unit, detached74.3%

1-unit, attached7.2%

2 to 4 units6.3%

5 to 19 units3.2%

20 or more units7.2%

Mobile home & other1.7%

Units in structure

	Count	Share
1-unit, detached	4,733	74.3%
1-unit, attached	461	7.2%
2 to 4 units	403	6.3%
5 to 19 units	206	3.2%
20 or more units	461	7.2%
Mobile home & other	109	1.7%

Geography

Place GEOID: 3637869
Type (LSAD): 57
Land area: 4.75 sq mi
Water area: 0.65 sq mi
Center point: 40.7303, -73.2161

Compare with nearby cities

Other places in Suffolk County

158