Greenlawn ZIP Code List — Suffolk County, NY

There is one unique ZIP code in Greenlawn, New York and it is 11740. Area code: 631.

ZIP codes

3.66

sq mi land

0.00

sq mi water

631

area code

Greenlawn, NY ZIP code map

About Greenlawn, NY

Greenlawn is a quaint hamlet located in Suffolk County, New York. Known for its suburban charm and accessibility, Greenlawn is a great place to live and raise a family. Its strong sense of community, coupled with its close proximity to major urban areas, makes it a desirable location for many residents.

Location & geography

Greenlawn is situated on Long Island and has a total land area of 3.66 square miles. It is conveniently located near several neighboring cities, including Huntington, which is approximately 4 miles to the west, and Northport, about 3 miles to the east. Remarkably, there are no water areas within the zip code 11740.

Community & economy

The character of Greenlawn is defined by its friendly atmosphere and active community life. The local economy is primarily supported by small businesses, retail, and services, appealing to both residents and visitors. Daily life here is characterized by community events and a strong commitment to maintaining a close-knit environment.

Transportation

Greenlawn is accessible via major highways, including the Long Island Expressway (I-495) and Route 110. The nearest airport is Republic Airport, located approximately 10 miles away, while the Long Island Rail Road services the area, providing convenient transit options for commuters. Residents benefit from well-maintained roadways and public transportation alternatives.

History

Greenlawn was originally settled in the 17th century, and it became known for its agriculture and manufacturing industries in the years that followed. A significant event in its history was the establishment of the Greenlawn Cemetery, which dates back to the mid-19th century and remains a landmark today. With its development over the decades, Greenlawn has preserved its historical roots while evolving into a modern community.

Did you know?

One little-known fact about Greenlawn is that it was once part of a larger village before it became an independent hamlet. Additionally, the community is home to several historic landmarks, including the Greenlawn Fire Department, which has served the area for over a century.

ZIP codes for Greenlawn, NY (1)

ZIP code	City	County	Map
11740	Greenlawn	Suffolk	View map

Demographics & statistics

11,010

Population

42.2

Median age

$144,911

Median household income

$57,158

Per capita income

$631,600

Median home value

$1,338

Median monthly rent

81.8%

Home ownership

5.0%

Poverty rate

5.3%

Unemployment

2,944

Housing units

52.8%

Bachelor's or higher

Age distribution

Male Female

225

Under 5

253

365

5–9

408

317

10–14

355

369

15–19

414

372

20–24

416

483

25–34

540

601

35–44

673

741

45–54

830

399

55–59

446

352

60–64

395

511

65–74

572

256

75–84

286

203

85+

228

← Male

Female →

Age summary

Group	Count	%
Under 18	2,497	22.7%
18 and over	8,513	77.3%
65 and over	2,056	18.7%
Median age	42.2 years

Race & ethnicity

White 72.5%

Black or African American 10.5%

Hispanic or Latino 6.3%

Two or more races 4.9%

Asian 3.6%

Other race 2.1%

Group	Count	%
White	8,522	72.5%
Black or African American	1,233	10.5%
Hispanic or Latino	746	6.3%
Two or more races	577	4.9%
Asian	427	3.6%
Other race	251	2.1%

Household income

Under $10k 6.3%

$10k–$15k 1.0%

$15k–$25k 5.2%

$25k–$35k 3.4%

$35k–$50k 9.3%

$50k–$75k 5.8%

$75k–$100k 6.7%

$100k–$150k 13.4%

$150k–$200k 19.0%

$200k+ 29.8%

Range	% of households
Under $10k	6.3%
$10k–$15k	1.0%
$15k–$25k	5.2%
$25k–$35k	3.4%
$35k–$50k	9.3%
$50k–$75k	5.8%
$75k–$100k	6.7%
$100k–$150k	13.4%
$150k–$200k	19.0%
$200k+	29.8%
Median income	$144,911

Housing

Home values

Under $50k 0.8%

$50k–$100k 0.3%

$100k–$150k 0.3%

$200k–$300k 2.0%

$300k–$500k 19.2%

$500k–$1M 71.2%

$1M+ 6.2%

Housing overview

Metric	Value
Median home value	$631,600
Median rent / month	$1,338
Owner occupied	81.8%
Renter occupied	18.2%
Vacant	1.1%
Single-family detached	82.8%
Large apartment buildings	1.2%
Mobile homes	0.0%
Median rooms	7.4
Avg household size (owned)	3.31

Year built

Era	%
2020 or later	0.0%
2010–2019	3.0%
2000–2009	3.6%
1990–1999	2.4%
1980–1989	6.9%
1970–1979	20.3%
1960–1969	22.8%
1950–1959	23.7%
1940–1949	4.0%
1939 or earlier	13.3%

Bedrooms

Size	% of units
No bedroom (studio)	1.9%
1 bedroom	11.1%
2 bedrooms	4.5%
3 bedrooms	29.9%
4 bedrooms	41.1%
5+ bedrooms	11.4%

Vehicles per household

Vehicles	% of households
No vehicle	6.6%
1 vehicle	22.3%
2 vehicles	42.1%
3 or more	28.9%

Heating fuel

Fuel type	%
Utility gas	52.4%
Electricity	11.4%
Propane / LP gas	1.9%
Fuel oil	32.3%
No fuel used	0.7%

Households & families

Household type	Count	%
Married-couple family	2,152	60.6%
Cohabiting couple	78	2.2%
Male householder, no spouse	368	10.4%
Female householder, no spouse	952	26.8%
Households with children under 18	1,249	35.2%
Households with seniors (65+)	1,505	42.4%
Average household size	3.04

Marital status

Status	Male	Female
Never married	34.9%	27.8%
Married	57.1%	46.1%
Separated	1.1%	2.7%
Widowed	1.4%	13.8%
Divorced	5.6%	9.7%

Education

Less than 9th grade 4.6%

Some HS, no diploma 2.2%

HS graduate 19.5%

Some college, no degree 12.0%

Associate's degree 8.9%

Bachelor's degree 27.2%

Graduate / professional 25.6%

Metric	%
HS diploma or higher	93.2%
Bachelor's or higher	52.8%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	191	6.9%
Kindergarten	106	3.8%
Elementary school	1,211	43.5%
High school	765	27.5%
College / grad school	510	18.3%

Employment

Industry of employment

Education & healthcare 31.7%

Professional & management 14.4%

Retail trade 8.0%

Construction 7.2%

Arts, food & hospitality 7.0%

Manufacturing 6.9%

Finance & real estate 6.8%

Information 4.2%

Wholesale trade 3.6%

Other services 3.4%

Transportation & utilities 3.2%

Public administration 3.2%

Agriculture & mining 0.4%

Occupation

Category	%
Management, business & arts	57.3%
Service	16.1%
Sales & office	15.5%
Natural resources & construction	7.5%
Production & transportation	3.6%

Employment type

Type	%
Private sector	79.5%
Government	14.0%
Self-employed	6.1%
Unpaid family workers	0.4%

Commute

Method	%
Drive alone	74.9%
Carpool	4.2%
Public transit	7.6%
Walk	0.1%
Other means	0.6%
Avg commute (minutes)	37.5

Poverty

All people 5.0%

Under 18 years 4.5%

18 and over 5.1%

Married-couple families 2.8%

Female-led households 8.3%

Income support

Source	% of households
Social Security	40.5%
Retirement income	31.2%
Supplemental Security	5.0%
Cash public assistance	3.3%
Food stamps / SNAP	10.4%

Health indicators

Condition	%
High blood pressure	29.4%
High cholesterol	31.9%
Heart disease	5.6%
Stroke	2.5%
Asthma	9.1%
Arthritis	21.0%
Kidney disease	2.7%
Pulmonary disease	5.2%
Cancer	7.7%

Behavior / access	%
Binge drinking	16.8%
No physical activity	19.5%
Less than 7 hrs sleep	32.1%
Fair or poor health	9.5%
Poor mental health	11.7%
Poor physical health	7.9%
No health insurance	8.1%
Visited doctor (checkup)	80.0%
Visited dentist	73.3%
Cholesterol screening	94.0%
Teeth loss	9.0%

Veterans & disability

Veterans	Count	%
Civilian veterans	347	4.1%

Disability	%
Any disability	11.3%
Under 18	5.7%
18–64 years	8.6%
65 and over	27.7%

Health insurance coverage

Type	%
Private insurance	82.2%
Public insurance	30.8%
Uninsured under 19	1.8%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	10,532	95.7%
Spanish	936	8.9%
Other Indo-European	629	6.0%
Asian & Pacific Islander	145	1.4%
Other languages	162	1.5%

Place of birth & citizenship

Origin	Count	%
Native born (US)	9,185	83.4%
Born in same state	9,004	81.8%
Born in different state	8,330	75.7%
Foreign born	181	1.6%
Naturalized citizen	1,825	16.6%
Not a US citizen	1,295	71.0%

Ancestry

Ancestry	Count	%
Italian	2,059	18.7%
French	806	7.3%
Arab	348	3.2%
Polish	63	0.6%
Irish	33	0.3%

Ancestry	Count	%
German	32	0.3%
Norwegian	21	0.2%
Dutch	14	0.1%
English	10	0.1%

Technology access

Metric	% of households
Computer access	32.2%
Internet access	92.3%

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

Frequently asked questions

What is the ZIP code for Greenlawn, NY?

Greenlawn, NY has one ZIP code: 11740.

What is the main ZIP code for Greenlawn, NY?

The primary ZIP code for Greenlawn, NY is 11740. The city uses area code 631 for phone service.

What county is Greenlawn, NY in?

Greenlawn is located in Suffolk County, New York.

How many ZIP codes are in Greenlawn, NY?

Greenlawn, NY has 1 ZIP code.

What is the ZIP code for Greenlawn Village in Suffolk County, New York?

Greenlawn Village is located in ZIP code 11740, which covers the entire hamlet of Greenlawn in Suffolk County on Long Island's North Shore.

If I'm sending mail to a business in downtown Greenlawn, NY, what ZIP code should I use?

All addresses in Greenlawn, including the central business area, use the ZIP code 11740.