US ZIP Code
11755

Lake Grove, NY

Suffolk County  ·  New York

● Active
👥 11,953 Population ↓ 5% since 2019
💰 $120,306 Median HH Income
▲ 58% above avg ↑ 3% since 2019
🎂 43.1 Median Age ↑ 5% since 2019
🏠 $558,900 Median Home Value
▲ 100% above avg ↑ 31% since 2019
🎓 55.3% College Grads
▲ 43% above avg
📊 5.8% Unemployment
▲ 18% above avg ↑ 71% since 2019
ZIP Code Details
ZIP Code11755
CityLake Grove
StateNew York (NY)
CountySuffolk County
Area Code363/516/631/934
Elevation94 ft
Latitude40.857817
Longitude-73.116844
TimezoneNew York (DST)
FIPS36103
ZIP TypeStandard
StatusActive
People & Population (ACS 2023)
♂ Male 51.5% (6,157) Female 48.5% (5,796) ♀

Race & Ethnicity

White: 69.7%Hispanic: 15.2%Black: 1%Asian: 11.2%Other: 2%Race
White69.7%
Hispanic15.2%
Black1.0%
Asian11.2%
Other2.0%

Age Breakdown

Under 5
3%
5–17
20%
18–24
8%
25–44
20%
45–64
31%
65+
8%

Key Indicators

Median Age43.1 yrs ↑ 5% since 2019
Avg Household Size2.93
Below Poverty5.8% ▼ 42% below avg
College Grads55.3% ▲ 43% above avg
Unemployment5.8% ▲ 18% above avg
No HS Diploma124 (1.6%)
HS Graduate2,123 (27.2%)
Some College583 (7.5%)
Associates663 (8.5%)
Bachelors606 (7.8%)
Graduate Degree3,717 (47.6%)

Education

No HS: 1.6%HS Grad: 27.2%Some College: 7.5%Associates: 8.5%Bachelors: 7.8%Graduate: 47.6%Edu
No HS1.6%
HS Grad27.2%
Some College7.5%
Associates8.5%
Bachelors7.8%
Graduate47.6%
Housing & Income

Housing Tenure

Owner: 80.1%Renter: 19.9%Tenure
Owner80.1%
Renter19.9%

Home Value Distribution

Under $50k
1%
$50k–100k
2%
$200k–300k
3%
$300k–500k
32%
Over $500k
62%

Financials

Median HH Income$120,306 ▲ 58% above avg ↑ 3% since 2019
Median Home Value$558,900 ▲ 100% above avg ↑ 31% since 2019
Home/Income Ratio4.6x (nat avg ~3.5x)
Median Rent$2,197/mo ↑ 17% since 2019
Total Units4,146
Vacant Units94
Avg HH Size2.93

Income Distribution

Under $25k
9%
$25k–50k
12%
$50k–75k
7%
$75k–100k
12%
$100k–150k
16%
$150k–200k
14%
Over $200k
29%
Employment & Commute

How People Get to Work

Drove Alone
85%
Public Transit
4%
Walked
0%
Work From Home
11%

Commute Time

Under 15 min
15%
15–30 min
39%
30–45 min
18%
Over 45 min
28%
Housing Stock

Year Built

Before 1940
1%
1940s–1950s
26%
1960s–1970s
12%
1980s–1990s
9%
2000+
52%

Summary

Total Units4,146
Vacant94
Owner Occupied80.1%
Renter Occupied19.9%
Avg HH Size2.93
Frequently Asked Questions
ZIP code 11755 is in Lake Grove, NY, in Suffolk County.
ZIP code 11755 is located in New York (NY).
ZIP code 11755 is in Suffolk County, NY.
ZIP 11755 observes the New York timezone. Daylight Saving Time is observed.
The estimated population of ZIP code 11755 is 11,953 people (ACS 2023).
The median household income in ZIP code 11755 is $120,306 (ACS 2023).
The median home value in ZIP 11755 is $558,900 (ACS 2023).
About ZIP Code 11755

ZIP code 11755 is located in Lake Grove, New York, within Suffolk County. With a population of 11,953, this is a lightly populated ZIP code with a middle-aged community — the median age is 43.1 years. Economically, 11755 is a upper-middle-income ZIP code: the median household income of $120,306 is significantly above the national average.

Real estate in ZIP code 11755 represents a premium housing market. The median home value of $558,900 is more than double the national average. Renters can expect to pay around $2,197 per month in median rent. Homeownership is strong here — 80.1% of occupied units are owner-occupied, suggesting an established, stable residential community. Median home values have increased by 31% since 2019.

The population of 11755 is majority White (69.71%). Residents are well-educated — 55.3% hold a bachelor's degree or higher, which is above the national average. Poverty affects a relatively small share of residents at 5.8%. Household income has grown by 3% since 2019.

The unemployment rate in 11755 stands at 5.8%, which is above the national average. As in most parts of the country, driving alone is the dominant commute mode at 78%.

Overall, ZIP code 11755 in Lake Grove, NY is characterized as upper-middle-income, well-educated, a middle-aged community, and predominantly owner-occupied. With 11,953 residents, a median household income of $120,306, and a median home value of $558,900, it offers a clear picture of life in this part of New York.