ZIP Code 11755
standardSource:
Lake Grove · Suffolk County · New York
- Population
- 12,387
- Median income
- $119,364
- Median home value
- $601,600
- Bachelor's or higher
- 45.2%
- Land area
- 8.4 sq mi
1,473/sq mi
▲ 56% vs US
higher than 90% of US ZIPs
▲ 116% vs US
higher than 91% of US ZIPs
Median age 40.2
New York
ZIP code 11755 in Lake Grove, New York has a population of 12,387. The median household income is $119,364, which is 56% above the national average. Median home value is $601,600, 116% above the US average. 45.2% of residents hold a bachelor's degree or higher.
ZIP code 11755 is classified by USPS as a standard delivery area and covers roughly 8.4 square miles in Lake Grove, Suffolk County, New York. The area is home to 12,387 residents, producing a population density of 1,473 people per square mile, and falls within the New York time zone. These USPS and Census boundary values drive every downstream statistic on this page, including the benchmarks that compare 11755 against New York and the nation.
On the economic side, the median household income for ZIP 11755 sits at $119,364 (29% above the New York average), while per-capita income is $50,381. The poverty rate stands at 7.4% and the unemployment rate at 5.4%. On housing, the median home value is $601,600 (59% above the state average) with median rent at $2,157 per month, and 78.5% of occupied units are owner-occupied, a direct signal of whether 11755 behaves more like a homeowner neighborhood or a renter-heavy ZIP.
Education and household profile round out the picture: 45.2% of adults hold a bachelor's degree or higher, the median age is 40.2, and the average commute is 38 minutes. We also surface 10 nearby ZIP codes within roughly 10 miles and 6 additional ZIPs sharing Suffolk County, so you can benchmark 11755 against its immediate geography rather than a national average alone. Every figure is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates, HUD Fair Market Rents, and FHFA Home Price Index data, no estimates, no proprietary scoring. Verify with HUD →
Top industries in ZIP 11755
Top 5 sectors by establishment count
Which industries have the most business establishments in ZIP 11755.
- Retail trade
Retail trade
158 establishments
- Construction 45
Construction
45 establishments
- Professional, scientific, and technical services 39
Professional, scientific, and technical services
39 establishments
- Accommodation and food services 36
Accommodation and food services
36 establishments
- Health care and social assistance 30
Health care and social assistance
30 establishments
What this shows Establishment counts come from the Census ZIP Code Business Patterns program, which counts physical business locations rather than employees or revenue.
Source: U.S. Census Bureau, American Community Survey 5-Year Estimates + ZIP Code Business Patterns + HUD FMR + FHFA HPI ACS demographics, ZBP business establishments, HUD Fair Market Rents, FHFA HPI for ZIP 11755, Lake Grove, NY · 2023 Census ACS 5-Year Estimates use a rolling 60-month sample for stable small-geography estimates; ZBP updated annually; HUD FMR + FHFA HPI updated quarterly/annually.
Quick Facts
12,387
Population
8.4
Area (sq mi)
1,473
People / sq mi
New York
Time Zone
standard
ZIP Type
Who lives in ZIP 11755?
40.2
Median Age
51.4%
Male
48.6%
Female
14.4%
Foreign-Born
Hispanic or Latino is an ethnicity category from the Census Bureau and may overlap with other categories above.
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
How much do residents earn?
$119,364
Median Household Income
+29% vs state
$50,381
Per Capita Income
7.4%
Poverty Rate
5.4%
Unemployment Rate
38.0 min
Mean Commute Time
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What is the education profile here?
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What does housing look like?
4,153
Total Housing Units
4,085
Occupied Units
68
Vacant Units
2.95
Avg Household Size
Occupancy Type
$601,600
Median Home Value
+59% vs state
$2,157
Median Rent
1970
Median Year Built
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
How have home values changed over time?
FHFA House Price Index, annual appreciation data based on repeat sales and appraisals
+8.1%
YoY Change (2024)
290
HPI Index (2000 = 100)
+190%
Total Change Since 2000
Home values in ZIP 11755 have increased 8.1% over the past year (2024). Since 2000, this ZIP has seen +190% cumulative appreciation.
| Year | Annual Change | HPI Index |
|---|---|---|
| 2020 | +4.5% | 195 |
| 2021 | +10.9% | 216 |
| 2022 | +14.3% | 247 |
| 2023 | +8.6% | 268 |
| 2024 | +8.1% | 290 |
Source: Federal Housing Finance Agency (FHFA) House Price Index, All-Transactions, Five-Digit ZIP Codes (Developmental Index). Index base = 100 in year 2000. Data through 2024. ZIP codes with few transactions may show missing values.
What businesses operate in this ZIP?
Census Bureau data shows 413 business establishments in ZIP 11755, employing approximately 5,132 people with a combined annual payroll of $172,175,000.
413
Businesses
5,132
Employees
$172.2M
Annual Payroll
13
Industry Sectors
| Industry | Establishments | % of Total |
|---|---|---|
| Retail trade | 158 | 38.3% |
| Construction | 45 | 10.9% |
| Professional, scientific, and technical services | 39 | 9.4% |
| Accommodation and food services | 36 | 8.7% |
| Health care and social assistance | 30 | 7.3% |
| Other services (except public administration) | 28 | 6.8% |
| Finance and insurance | 15 | 3.6% |
| Wholesale trade | 14 | 3.4% |
| Real estate and rental and leasing | 11 | 2.7% |
| Administrative and support and waste management and remediation services | 11 | 2.7% |
| Information | 9 | 2.2% |
| Transportation and warehousing | 8 | 1.9% |
| Arts, entertainment, and recreation | 3 | 0.7% |
Source: U.S. Census Bureau, ZIP Code Business Patterns (ZBP), 2023. Employment figures may include noise for disclosure avoidance.
Nearby ZIP Codes
Want a side-by-side? Compare 11755 vs 11767 →
| ZIP Code | City | Population | Distance |
|---|---|---|---|
| 11767 | Nesconset, NY | 14,530 | 1.7 mi |
| 11720 | Centereach, NY | 29,189 | 2.0 mi |
| 11779 | Ronkonkoma, NY | 38,421 | 3.1 mi |
| 11790 | Stony Brook, NY | 18,511 | 3.4 mi |
| 11794 | Stony Brook, NY | 3,165 | 3.9 mi |
| 11780 | Saint James, NY | 15,524 | 3.6 mi |
| 11784 | Selden, NY | 24,655 | 4.0 mi |
| 11733 | East Setauket, NY | 18,949 | 5.5 mi |
| 11716 | Bohemia, NY | 10,700 | 6.0 mi |
| 11787 | Smithtown, NY | 35,772 | 4.9 mi |
More ZIP Codes in Suffolk County
Related Areas
Frequently Asked Questions
What county is ZIP code 11755 in? ▼
What is the population of ZIP code 11755? ▼
What is the median household income in ZIP 11755? ▼
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What is the demographic makeup of ZIP 11755? ▼
How many businesses are in ZIP code 11755? ▼
What are the main industries in ZIP code 11755? ▼
How have home values changed in ZIP code 11755? ▼
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What percentage of residents own vs. rent in ZIP 11755? ▼
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ZIP Code Research Guides
Official Data Resources for Lake Grove, NY
Verify and explore additional data for this area using these official government sources.
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023). Business data: Source: Census ZIP Code Business Patterns (ZBP) 2023. Home value trends: Source: FHFA House Price Index (HPI), Five-Digit ZIP Codes.
PlainZIP is not affiliated with the U.S. Census Bureau or any government agency.
Read our methodology , how this data is sourced, computed, and verified.