Islandia ZIP Code List — Suffolk County, NY

There is one unique ZIP code in Islandia, New York and it is 11749. Area code: 631/516.

ZIP codes

2.19

sq mi land

0.00

sq mi water

631/516

area code

Islandia, NY ZIP code map

About Islandia, NY

Islandia is a charming village located in Suffolk County, New York. This small community, noted for its suburban atmosphere, offers a blend of residential areas and local businesses, making it an attractive place to live and work. With its convenient location and well-planned infrastructure, Islandia serves as a central hub on Long Island.

Location & geography

Islandia, NY is situated on the northern shore of Long Island, bordered by several notable towns and cities. The village is approximately 40 miles east of Midtown Manhattan and is close to nearby communities such as Hauppauge, which is just 3 miles to the west, and Central Islip, approximately 2 miles to the south. Covering a land area of 6.56 square miles, Islandia is entirely land-based with no significant water areas.

Community & economy

The character of Islandia is largely defined by its residential community, which harmoniously blends the conveniences of suburban living with access to urban amenities. The local economy is supported by various industries, including retail, professional services, and hospitality, contributing to a vibrant local culture. Residents enjoy a daily life that balances tranquility with close access to the hustle and bustle of larger neighboring cities.

Transportation

Islandia is well-connected by major highways, including the Long Island Expressway (I-495), which provides easy access to surrounding areas. The nearest airports are Long Island MacArthur Airport, located just a short drive away, and John F. Kennedy International Airport, roughly 40 miles to the west. Public transportation options are also available, with local buses servicing the area for commuters.

History

Founded in the mid-20th century, Islandia emerged as a planned community designed to accommodate the growing population of Long Island. Key industries that developed during this period included retail and service sectors, which continue to shape the local economy. Notable events include the incorporation of Islandia as a village in 1985, marking its official recognition as a distinct community.

Did you know?

One surprising fact about Islandia is that it was developed primarily as a residential community in the 1960s, emphasizing a suburban lifestyle amidst the dense development of Long Island. Another lesser-known detail is that Islandia is home to several corporate offices and business parks, showcasing its role as a center for commerce on Long Island.

ZIP codes for Islandia, NY (1)

ZIP code	City	County	Map
11749	Islandia	Suffolk	View map

Demographics & statistics

3,568

Population

38.0

Median age

$109,964

Median household income

$41,382

Per capita income

$422,500

Median home value

$1,830

Median monthly rent

96.8%

Home ownership

4.8%

Poverty rate

4.0%

Unemployment

1,162

Housing units

28.3%

Bachelor's or higher

Age distribution

Male Female

Under 5

5–9

113

10–14

106

15–19

20–24

359

25–34

406

186

35–44

210

204

45–54

231

132

55–59

149

111

60–64

126

168

65–74

189

75–84

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	680	19.1%
18 and over	2,888	80.9%
65 and over	549	15.4%
Median age	38.0 years

Race & ethnicity

White 32.7%

Hispanic or Latino 23.8%

Other race 16.4%

Two or more races 10.2%

Black or African American 9.3%

Asian 6.9%

American Indian / Alaska Native 0.6%

Group	Count	%
White	1,533	32.7%
Hispanic or Latino	1,114	23.8%
Other race	769	16.4%
Two or more races	478	10.2%
Black or African American	437	9.3%
Asian	321	6.9%
American Indian / Alaska Native	30	0.6%

Household income

Under $10k 1.4%

$10k–$15k 0.8%

$15k–$25k 2.2%

$25k–$35k 3.7%

$35k–$50k 13.8%

$50k–$75k 11.6%

$75k–$100k 9.8%

$100k–$150k 23.5%

$150k–$200k 14.5%

$200k+ 18.7%

Range	% of households
Under $10k	1.4%
$10k–$15k	0.8%
$15k–$25k	2.2%
$25k–$35k	3.7%
$35k–$50k	13.8%
$50k–$75k	11.6%
$75k–$100k	9.8%
$100k–$150k	23.5%
$150k–$200k	14.5%
$200k+	18.7%
Median income	$109,964

Housing

Home values

Under $50k 4.4%

$100k–$150k 0.4%

$150k–$200k 0.6%

$200k–$300k 12.6%

$300k–$500k 58.0%

$500k–$1M 20.8%

$1M+ 3.2%

Housing overview

Metric	Value
Median home value	$422,500
Median rent / month	$1,830
Owner occupied	96.8%
Renter occupied	3.2%
Vacant	7.1%
Single-family detached	82.1%
Large apartment buildings	2.3%
Mobile homes	0.0%
Median rooms	6.9
Avg household size (owned)	3.15

Year built

Era	%
2020 or later	0.0%
2010–2019	1.7%
2000–2009	4.8%
1990–1999	6.0%
1980–1989	16.3%
1970–1979	17.6%
1960–1969	46.5%
1950–1959	2.3%
1940–1949	2.5%
1939 or earlier	2.4%

Bedrooms

Size	% of units
No bedroom (studio)	0.7%
1 bedroom	10.5%
2 bedrooms	5.6%
3 bedrooms	31.6%
4 bedrooms	37.3%
5+ bedrooms	14.4%

Vehicles per household

Vehicles	% of households
No vehicle	3.1%
1 vehicle	20.6%
2 vehicles	37.6%
3 or more	38.6%

Heating fuel

Fuel type	%
Utility gas	19.1%
Electricity	5.0%
Propane / LP gas	0.6%
Fuel oil	74.2%
Solar	1.0%

Households & families

Household type	Count	%
Married-couple family	616	55.3%
Cohabiting couple	85	7.6%
Male householder, no spouse	82	7.4%
Female householder, no spouse	330	29.6%
Households with children under 18	356	32.0%
Households with seniors (65+)	381	34.2%
Average household size	3.14

Marital status

Status	Male	Female
Never married	28.4%	32.3%
Married	59.7%	36.7%
Separated	1.6%	7.6%
Widowed	1.6%	9.6%
Divorced	8.7%	13.8%

Education

Less than 9th grade 6.4%

Some HS, no diploma 3.9%

HS graduate 29.6%

Some college, no degree 19.0%

Associate's degree 12.7%

Bachelor's degree 14.8%

Graduate / professional 13.5%

Metric	%
HS diploma or higher	89.7%
Bachelor's or higher	28.3%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	10	1.2%
Kindergarten	68	8.5%
Elementary school	323	40.3%
High school	104	13.0%
College / grad school	297	37.0%

Employment

Industry of employment

Education & healthcare 24.5%

Retail trade 20.0%

Manufacturing 12.4%

Professional & management 9.7%

Arts, food & hospitality 6.6%

Transportation & utilities 6.3%

Other services 5.5%

Finance & real estate 4.6%

Public administration 4.6%

Information 2.3%

Construction 1.8%

Wholesale trade 1.7%

Occupation

Category	%
Management, business & arts	28.5%
Service	17.5%
Sales & office	26.6%
Natural resources & construction	10.8%
Production & transportation	16.6%

Employment type

Type	%
Private sector	82.2%
Government	11.6%
Self-employed	5.3%
Unpaid family workers	0.9%

Commute

Method	%
Drive alone	79.2%
Carpool	7.0%
Public transit	1.4%
Walk	2.1%
Other means	5.0%
Avg commute (minutes)	27.5

Poverty

All people 4.8%

Under 18 years 0.0%

18 and over 5.9%

Married-couple families 1.5%

Female-led households 0.0%

Income support

Source	% of households
Social Security	30.7%
Retirement income	18.0%
Supplemental Security	1.2%
Cash public assistance	2.9%
Food stamps / SNAP	8.6%

Health indicators

Condition	%
High blood pressure	28.8%
High cholesterol	28.8%
Heart disease	5.4%
Stroke	2.6%
Asthma	9.4%
Arthritis	19.5%
Kidney disease	2.7%
Pulmonary disease	5.2%
Cancer	6.4%

Behavior / access	%
Binge drinking	17.0%
No physical activity	24.7%
Less than 7 hrs sleep	35.3%
Fair or poor health	11.8%
Poor mental health	13.2%
Poor physical health	8.7%
No health insurance	14.3%
Visited doctor (checkup)	78.6%
Visited dentist	66.5%
Cholesterol screening	91.7%
Teeth loss	11.8%

Veterans & disability

Veterans	Count	%
Civilian veterans	142	4.9%

Disability	%
Any disability	6.6%
Under 18	1.2%
18–64 years	5.1%
65 and over	20.0%

Health insurance coverage

Type	%
Private insurance	72.8%
Public insurance	32.7%
Uninsured under 19	0.0%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	3,389	95.0%
Spanish	470	13.9%
Other Indo-European	294	8.7%
Asian & Pacific Islander	116	3.4%
Other languages	60	1.8%

Place of birth & citizenship

Origin	Count	%
Native born (US)	2,271	63.6%
Born in same state	2,206	61.8%
Born in different state	2,122	59.5%
Foreign born	65	1.8%
Naturalized citizen	1,297	36.4%
Not a US citizen	945	72.9%

Ancestry

Ancestry	Count	%
Arab	192	5.4%
Italian	142	4%
French	58	1.6%

Ancestry	Count	%
German	20	0.6%
Polish	10	0.3%

Technology access

Metric	% of households
Computer access	31.2%
Internet access	98.7%

Source: U.S. Census Bureau, American Community Survey 2025 estimates.

Frequently asked questions

What ZIP codes does Islandia, NY have?

Islandia, NY has 2 ZIP codes: 11749, 11749. Each ZIP code serves a distinct delivery area within the city and surrounding region.

What is the main ZIP code for Islandia, NY?

The primary ZIP code for Islandia, NY is 11749. The city uses area code 631 or 516 for phone service.

What county is Islandia, NY in?

Islandia is located in Suffolk County, New York.

How many ZIP codes are in Islandia, NY?

Islandia, NY has 2 ZIP codes.

What ZIP code should I use for mailing packages to businesses in the Islandia commercial park area?

The Islandia commercial park area, which is the primary business district in Islandia, uses ZIP code 11749 for all mailing addresses.

Is there more than one ZIP code serving Islandia, NY?

No, Islandia is served by a single ZIP code, 11749, which covers the entire incorporated village in Suffolk County.