Postal Codes

11755 ZIP Code

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ZIP code 11755 covers Lake Grove, New York, with a population of about 11,953 and a median household income of $120,306.

Population
11,9533,646 per square mile
Median age
43.14.4 points above the US average
Median household income
$120,3061.4× the New York median
Poverty rate
5.8%6.6 points below the US average
Typical home value
$742,918up 38.4% in five years
Median rent
$2,1971.4× the New York median
Degree or higher
48.3%13.3 points above the US average
Homeownership
80.1%15.1 points above the US average
Time zone
Eastern UTC-05:00observes daylight saving time
Businesses
422

Where 11755 is

Lake Grove, New York — the area the Census Bureau draws for this ZIP code. ZIP codes are sets of delivery routes rather than areas, so this is the Census approximation of one, not a Postal Service boundary.

People and households

American Community Survey 2019–2023 five-year estimates

Population11,953
Median age43.1
Family households75%
Born outside the US16.1%
Speaks a language other than English at home19.9%
White (non-Hispanic)69.7%
Black (non-Hispanic)1%
Asian (non-Hispanic)11.2%
Hispanic or Latino15.2%
Veterans3.1%
Population by age
MaleFemale0-45-910-1415-1920-2425-3435-4445-5455-6465-7475-8485+
Income and poverty

American Community Survey 2019–2023 five-year estimates

Median household income$120,306
Income per person$52,190
Poverty rate5.8%
Households on SNAP or cash assistance5.4%

Household income distribution

Under $10k5.4%
$10–15k2.4%
$15–20k0.6%
$20–25k0.4%
$25–30k1.3%
$30–35k1.9%
$35–40k2.5%
$40–45k3.8%
$45–50k5.0%
$50–60k1.8%
$60–75k5.4%
$75–100k11.6%
$100–125k8.8%
$125–150k6.8%
$150–200k14.0%
$200k or more28.1%

Income as declared to the IRS

Filed returns rather than survey responses, so this counts tax units and not households.

Tax returns filed6,350
Mean adjusted gross income$110,816
Returns declaring $200,000 or more12.4%
Returns, under $25k20.5%
Returns, $25k–$50k16.4%
Returns, $50k–$75k14.2%
Returns, $75k–$100k11.5%
Returns, $100k–$200k25.0%
Returns, $200k or more12.4%
Housing

American Community Survey 2019–2023 five-year estimates

Median home value$558,900
Median gross rent$2,197
Rent as a share of household income37.9%
Owner-occupied80.1%
Vacant homes2.3%
Median year built1970

What the homes are

Detached house81%
Attached house2.9%
2 to 4 units2.2%
5 to 19 units9.8%
20 or more units4%
Mobile home0.1%
Home values and rents today

Zillow Home Value Index and Zillow Observed Rent Index, courtesy of Zillow. Monthly and current, where the Census figures above are a five-year average and are capped at $2,000,000.

Typical home value$742,918as of 2026-07
Typical home value, 1 yearup 7.1%
Typical home value, 5 yearsup 38.4%
Typical home value, 10 yearsup 90.5%
Typical asking rent$2,320as of 2026-07
Typical home value since 2000
200020132026$742,918$199,828

$199,828 in 2000 to $742,918 in 2026.

Work, commuting and education

American Community Survey 2019–2023 five-year estimates

Unemployment rate5.8%
Bachelor's degree or higher48.3%
High school diploma or higher95%
Works from home9.8%
Drives to work alone77.6%
Takes public transport3.9%
Commutes 45 minutes or more28.3%
Health

CDC PLACES 2025 release, model-based estimates. These are modelled small-area estimates for adults, not counts of diagnosed cases.

Obesity27.7% 5.7 pts below the national average of 33.4%
Diagnosed diabetes9.4% 2.6 pts below the national average of 12%
Currently smokes9% 4.2 pts below the national average of 13.2%
High blood pressure31.4% 2.7 pts below the national average of 34.1%
Fair or poor general health14% 6.3 pts below the national average of 20.3%
No health insurance (18–64)5.1% 6.2 pts below the national average of 11.3%
Depression16.3% 5.6 pts below the national average of 21.9%
No leisure-time physical activity22.3% 3.1 pts below the national average of 25.4%
Arthritis24.1% 1 pts below the national average of 25.1%
Binge drinking16.5% 0.5 pts above the national average of 16%
Taking blood pressure medication77.8% 3.1 pts above the national average of 74.7%
Cancer (non-skin)9.2% 1.5 pts above the national average of 7.7%
Current asthma10% same as the national average of 10.4%
Coronary heart disease5.8% same as the national average of 6.2%
Routine check-up in past year81.9% 5.2 pts above the national average of 76.7%
Cholesterol screening90.8% 4.9 pts above the national average of 85.9%
Cognitive disability10.4% 4.4 pts below the national average of 14.8%
Colorectal screening68.1% 3.8 pts above the national average of 64.3%
COPD5.2% 1.4 pts below the national average of 6.6%
Visited a dentist67.8% 6.5 pts above the national average of 61.3%
Any disability24.9% 5.8 pts below the national average of 30.7%
Lacks emotional support22.1% 2.7 pts below the national average of 24.8%
Food insecurity10.1% 7 pts below the national average of 17.1%
Received food stamps7.6% 6.7 pts below the national average of 14.3%
Hearing disability5.7% 1 pts below the national average of 6.7%
High cholesterol39.8% 3.6 pts above the national average of 36.2%
Housing insecurity8.9% 4.9 pts below the national average of 13.8%
Independent living disability6% 2.4 pts below the national average of 8.4%
Lacks transport5.6% 3.6 pts below the national average of 9.2%
Loneliness28.6% 5.8 pts below the national average of 34.4%
Mammography use80% 4.1 pts above the national average of 75.9%
Poor mental health (14+ days)14% 2.8 pts below the national average of 16.8%
Mobility disability11.3% 2.7 pts below the national average of 14%
Poor physical health (14+ days)11.3% 2.2 pts below the national average of 13.5%
Self-care disability2.8% 1.2 pts below the national average of 4%
Utility shut-off threat5% 3.8 pts below the national average of 8.8%
Sleeps under 7 hours37.5% 1.1 pts above the national average of 36.4%
Stroke2.9% 0.5 pts below the national average of 3.4%
All natural teeth lost7.5% 5.5 pts below the national average of 13%
Vision disability3.6% 2 pts below the national average of 5.6%
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Business and employment

Census ZIP Code Business Patterns 2022

Business establishments422
People employed5,349
Annual payroll$165,679,000
Natural hazard risk

FEMA National Risk Index, estimated for this ZIP code from census tract data — the NRI is not published per ZIP.

Overall riskHigher than 15.1% of US census tracts
FEMA ratingVery Low to Relatively Moderate across the 8 census tracts this ZIP code covers
Expected annual loss21.8 out of 100
Community resilience90.9 out of 100

By hazard

Score is out of 100 and is the area-weighted average across the census tracts this ZIP code covers. The rating beside it is the highest any one of those tracts carries.

Hurricane71.8Relatively Moderate at its worst in this ZIP code
Earthquake59.3Relatively Low at its worst in this ZIP code
Winter weather59.1Relatively High at its worst in this ZIP code
Ice storm53.5Relatively Moderate at its worst in this ZIP code
Landslide46.6Very Low at its worst in this ZIP code
Strong wind40.8Relatively Moderate at its worst in this ZIP code
Cold wave35.7Relatively Moderate at its worst in this ZIP code
Lightning32Relatively Moderate at its worst in this ZIP code
River flooding29.8Relatively High at its worst in this ZIP code
Wildfire21.8Very Low at its worst in this ZIP code
Heat wave21Relatively Low at its worst in this ZIP code
Tornado18.5Relatively Low at its worst in this ZIP code
Hail9.5Very Low at its worst in this ZIP code
Compared with New York and the United States

State and national columns are figures for those areas, not for this ZIP code. American Community Survey 2019–2023 five-year estimates

This ZIPNew YorkUnited States
Median household income$120,306$84,578$78,538
Income per person$52,190$49,520$43,289
Poverty rate5.8%13.7%12.4%
Median home value$558,900$403,000$303,400
Median gross rent$2,197$1,576$1,348
Homeownership80.1%54.3%65%
Bachelor's degree or higher48.3%39.6%35%
Unemployment rate5.8%6.2%5.2%
Works from home9.8%13.3%13.5%
Born outside the US16.1%22.6%13.9%
Median age43.139.638.7
Climate

NOAA US Climate Normals 1991-2020, from the nearest weather station with a full year of records. The station and its distance are named above, because a station forty kilometres away describes somewhere else.

Weather stationISLIP LI MACARTHUR AP, NY US7.1 km away
Rain in a year46 in
Snow in a year32 in

Average high and low by month

January39.2°F / 24.6°F3.66 in rain, 10.3 in snow
February41°F / 25.5°F3.29 in rain, 9.4 in snow
March47.7°F / 32°F4.51 in rain, 6.5 in snow
April58.3°F / 41.2°F4.06 in rain, 0.6 in snow
May68.3°F / 50.8°F3.28 in rain
June77.2°F / 60.9°F4 in rain
July82.8°F / 67.3°F3.26 in rain
August81.4°F / 66°F4.24 in rain
September74.8°F / 58.9°F3.6 in rain
October64.1°F / 47.3°F3.97 in rain
November53.6°F / 37.6°F3.41 in rain, 0.5 in snow
December44.4°F / 29.8°F4.71 in rain, 4.5 in snow
Access to food

USDA Food Access Research Atlas, estimated for this ZIP code from census tract data. Each figure is the share of the ZIP code's land area that falls in a tract carrying that flag.

Low income and far from a supermarketNone of this ZIP code
Far from a supermarket18% of this ZIP code's area
No vehicle and far from a supermarketNone of this ZIP code
School districts

NCES Geographic Relationship File 2025, which states the association between each district and each ZIP code tabulation area directly. Elementary and secondary districts can cover the same ground, so shares need not total 100%.

This ZIP code is served by 4 school districts, so the address decides which one, not the ZIP code.

Middle Country Central School District53.8% of this ZIP code's land area
Sachem Central School District38.3% of this ZIP code's land area
Smithtown Central School District4% of this ZIP code's land area
Three Village Central School District3.9% of this ZIP code's land area
Community and walkability

CDC/ATSDR Social Vulnerability Index 2022 and the EPA National Walkability Index, both estimated for this ZIP code from census tract data. Vulnerability figures are national percentile ranks, not measurements.

Overall social vulnerability29more vulnerable than 29% of US census tracts
Socioeconomic status34more vulnerable than 34% of US census tracts
Household characteristics27more vulnerable than 27% of US census tracts
Racial and ethnic minority status43more vulnerable than 43% of US census tracts
Housing type and transport36more vulnerable than 36% of US census tracts
Walkability8.7 out of 20Below average
Nearby ZIP codes

The closest ZIP codes by centre point, which is not the same as sharing a border.

11767 Nesconset, NY2.9 km away
11720 Centereach, NY3.3 km away
11780 Saint James, NY4.5 km away
11779 Ronkonkoma, NY5.5 km away
11790 Stony Brook, NY5.6 km away
11784 Selden, NY6.2 km away
11738 Farmingville, NY6.7 km away
11749 Islandia, NY7.2 km away
Location, counties and time zone

County shares from Census 2020 ZCTA relationship files. Time zone from the USDOT National Transportation Atlas, which renders the boundaries written into 49 CFR Part 71.

Suffolk County100% of this ZIP code's land area
Time zoneEastern (UTC-05:00 standard)
Daylight saving timeObserved
Land area3.28 sq mi
Population density3,646 people per sq mi
Latitude, longitude40.8567, -73.1168

Figures are published for this ZIP code or its Census tabulation area unless a section says otherwise. Estimates whose margin of error made them unreliable are omitted rather than shown. Sources: US Census Bureau, CDC, IRS.

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