Lake Grove ZIP Code List — Suffolk County, NY

There is one unique ZIP code in Lake Grove, New York and it is 11755. Area code: 631.

ZIP codes

3.28

sq mi land

0.00

sq mi water

631

area code

Lake Grove, NY ZIP code map

About Lake Grove, NY

Lake Grove, NY is a quaint village located in Suffolk County on Long Island. It is known for its suburban charm and community-oriented atmosphere. This vibrant village combines residential living with proximity to various amenities and attractions.

Location & geography

Lake Grove is situated in the central part of Suffolk County, making it well-connected to other areas of Long Island. Nearby cities include Centereach, which is approximately 2 miles to the northwest, and Ronkonkoma, about 3 miles to the northeast. The village spans a land area of 3.28 square miles, with no water area, giving it a primarily terrestrial landscape.

Community & economy

The character of Lake Grove is marked by its family-friendly environment and a sense of community. Local industries primarily revolve around retail and services, with many residents commuting to nearby areas for work, contributing to daily life in the village. The presence of shopping centers, parks, and recreational facilities enhances the suburban lifestyle of its inhabitants.

Transportation

Lake Grove is serviced by several key highways, including the Long Island Expressway (I-495), providing convenient access to surrounding regions. The nearest named airport is Long Island MacArthur Airport, located about 5 miles to the east. Public transportation options, including bus services, also serve the area, making it accessible for residents and visitors alike.

History

Lake Grove was incorporated in 1961 and has since developed into a thriving community with a focus on residential living. The village initially grew around local farming and retail industries, and over the years, it has evolved into a suburban hub. Notable events in its development include the establishment of shopping centers that cater to both locals and visitors.

Did you know?

One surprising fact about Lake Grove is that it has a strong community spirit, evident in the numerous local events planned throughout the year. Additionally, the village is home to the expansive Smithhaven Mall, which acts as a major shopping and entertainment venue for residents and visitors.

ZIP codes for Lake Grove, NY (1)

ZIP code	City	County	Map
11755	Lake Grove	Suffolk	View map

Demographics & statistics

12,227

Population

41.4

Median age

$121,196

Median household income

$49,887

Per capita income

$513,400

Median home value

$2,136

Median monthly rent

81.7%

Home ownership

5.3%

Poverty rate

4.9%

Unemployment

3,431

Housing units

47.8%

Bachelor's or higher

Age distribution

Male Female

243

Under 5

219

386

5–9

347

573

10–14

517

410

15–19

369

482

20–24

435

724

25–34

653

651

35–44

586

1,020

45–54

918

598

55–59

539

389

60–64

350

524

65–74

472

332

75–84

299

100

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	2,751	22.5%
18 and over	9,476	77.5%
65 and over	1,818	14.9%
Median age	41.4 years

Race & ethnicity

White 74.2%

Asian 8.2%

Hispanic or Latino 7%

Two or more races 5.8%

Other race 2.5%

Black or African American 2.1%

American Indian / Alaska Native 0.1%

Group	Count	%
White	9,761	74.2%
Asian	1,081	8.2%
Hispanic or Latino	926	7%
Two or more races	757	5.8%
Other race	333	2.5%
Black or African American	282	2.1%
American Indian / Alaska Native	13	0.1%

Household income

Under $10k 4.7%

$10k–$15k 2.4%

$15k–$25k 1.6%

$25k–$35k 3.7%

$35k–$50k 9.8%

$50k–$75k 8.4%

$75k–$100k 10.5%

$100k–$150k 18.9%

$150k–$200k 14.4%

$200k+ 25.6%

Range	% of households
Under $10k	4.7%
$10k–$15k	2.4%
$15k–$25k	1.6%
$25k–$35k	3.7%
$35k–$50k	9.8%
$50k–$75k	8.4%
$75k–$100k	10.5%
$100k–$150k	18.9%
$150k–$200k	14.4%
$200k+	25.6%
Median income	$121,196

Housing

Home values

Under $50k 1.3%

$50k–$100k 0.9%

$200k–$300k 3.2%

$300k–$500k 42.2%

$500k–$1M 50.8%

$1M+ 1.7%

Housing overview

Metric	Value
Median home value	$513,400
Median rent / month	$2,136
Owner occupied	81.7%
Renter occupied	18.3%
Vacant	1.9%
Single-family detached	82.2%
Large apartment buildings	4.2%
Mobile homes	0.1%
Median rooms	6.7
Avg household size (owned)	3.25

Year built

Era	%
2020 or later	0.0%
2010–2019	4.5%
2000–2009	9.7%
1990–1999	8.3%
1980–1989	4.1%
1970–1979	23.3%
1960–1969	29.0%
1950–1959	13.2%
1940–1949	3.3%
1939 or earlier	4.6%

Bedrooms

Size	% of units
No bedroom (studio)	2.2%
1 bedroom	8.5%
2 bedrooms	14.6%
3 bedrooms	30.7%
4 bedrooms	36.1%
5+ bedrooms	7.9%

Vehicles per household

Vehicles	% of households
No vehicle	6.6%
1 vehicle	23.1%
2 vehicles	35.6%
3 or more	34.7%

Heating fuel

Fuel type	%
Utility gas	42.5%
Electricity	3.0%
Propane / LP gas	0.9%
Fuel oil	52.3%
Wood	0.7%

Households & families

Household type	Count	%
Married-couple family	2,473	60.3%
Cohabiting couple	158	3.9%
Male householder, no spouse	704	17.2%
Female householder, no spouse	765	18.7%
Households with children under 18	1,316	32.1%
Households with seniors (65+)	1,460	35.6%
Average household size	2.97

Marital status

Status	Male	Female
Never married	36.1%	26.6%
Married	52.3%	54.4%
Separated	0.4%	1.2%
Widowed	3.7%	9.5%
Divorced	7.5%	8.3%

Education

Less than 9th grade 1.9%

Some HS, no diploma 3.0%

HS graduate 23.9%

Some college, no degree 14.9%

Associate's degree 8.5%

Bachelor's degree 27.4%

Graduate / professional 20.4%

Metric	%
HS diploma or higher	95.1%
Bachelor's or higher	47.8%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	131	3.7%
Kindergarten	174	4.9%
Elementary school	1,447	40.6%
High school	606	17.0%
College / grad school	1,204	33.8%

Employment

Industry of employment

Education & healthcare 30.9%

Professional & management 12.1%

Retail trade 9.5%

Finance & real estate 8.7%

Arts, food & hospitality 7.0%

Construction 6.5%

Public administration 6.4%

Transportation & utilities 5.5%

Manufacturing 5.0%

Other services 3.6%

Wholesale trade 2.5%

Information 2.4%

Occupation

Category	%
Management, business & arts	48.2%
Service	18.9%
Sales & office	20.6%
Natural resources & construction	6.9%
Production & transportation	5.5%

Employment type

Type	%
Private sector	72.9%
Government	19.5%
Self-employed	7.6%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	75.6%
Carpool	9.4%
Public transit	7.0%
Walk	0.2%
Other means	0.4%
Avg commute (minutes)	38.5

Poverty

All people 5.3%

Under 18 years 2.1%

18 and over 6.2%

Married-couple families 2.0%

Female-led households 4.6%

Income support

Source	% of households
Social Security	39.9%
Retirement income	29.2%
Supplemental Security	4.6%
Cash public assistance	1.3%
Food stamps / SNAP	5.4%

Health indicators

Condition	%
High blood pressure	25.9%
High cholesterol	28.4%
Heart disease	4.6%
Stroke	2.1%
Asthma	9.1%
Arthritis	18.1%
Kidney disease	2.2%
Pulmonary disease	4.7%
Cancer	6.2%

Behavior / access	%
Binge drinking	18.9%
No physical activity	19.4%
Less than 7 hrs sleep	33.4%
Fair or poor health	8.9%
Poor mental health	12.8%
Poor physical health	7.5%
No health insurance	9.0%
Visited doctor (checkup)	77.6%
Visited dentist	71.9%
Cholesterol screening	92.1%
Teeth loss	8.7%

Veterans & disability

Veterans	Count	%
Civilian veterans	315	3.3%

Disability	%
Any disability	10.5%
Under 18	6.2%
18–64 years	8.1%
65 and over	27.1%

Health insurance coverage

Type	%
Private insurance	84.4%
Public insurance	23.2%
Uninsured under 19	2.4%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	11,765	96.2%
Spanish	367	3.1%
Other Indo-European	41	0.3%
Asian & Pacific Islander	125	1.1%
Other languages	156	1.3%

Place of birth & citizenship

Origin	Count	%
Native born (US)	10,683	87.4%
Born in same state	10,580	86.5%
Born in different state	9,841	80.5%
Foreign born	103	0.8%
Naturalized citizen	1,544	12.6%
Not a US citizen	1,003	65.0%

Ancestry

Ancestry	Count	%
Italian	2,781	22.7%
Arab	1,165	9.5%
French	431	3.5%
Irish	93	0.8%
Polish	71	0.6%

Ancestry	Count	%
Dutch	40	0.3%
German	22	0.2%
Norwegian	10	0.1%
English	8	0.1%

Technology access

Metric	% of households
Computer access	33.5%
Internet access	97.6%

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

Frequently asked questions

What is the ZIP code for Lake Grove, NY?

Lake Grove, NY has one ZIP code: 11755.

What is the main ZIP code for Lake Grove, NY?

The primary ZIP code for Lake Grove, NY is 11755. The city uses area code 631 for phone service.

What county is Lake Grove, NY in?

Lake Grove is located in Suffolk County, New York.

How many ZIP codes are in Lake Grove, NY?

Lake Grove, NY has 1 ZIP code.

What is the ZIP code for Lake Grove village in Suffolk County?

Lake Grove is served by ZIP code 11755, which covers this residential community on Long Island.

If I'm mailing a package to an address near the Lake Grove Commons shopping area, what ZIP code should I use?

You should use ZIP code 11755, as all addresses in Lake Grove, including those near local shopping areas, fall within this single ZIP code.