ZIP Code 11749
standardSource:
Islandia · Suffolk County · New York
- Population
- 3,345
- Median income
- $116,313
- Median home value
- $477,400
- Bachelor's or higher
- 32.5%
- Land area
- 5.7 sq mi
592/sq mi
▲ 52% vs US
higher than 89% of US ZIPs
▲ 72% vs US
higher than 86% of US ZIPs
Median age 43.3
New York
ZIP code 11749 in Islandia, New York has a population of 3,345. The median household income is $116,313, which is 52% above the national average. Median home value is $477,400, 72% above the US average. 32.5% of residents hold a bachelor's degree or higher.
ZIP code 11749 is classified by USPS as a standard delivery area and covers roughly 5.7 square miles in Islandia, Suffolk County, New York. The area is home to 3,345 residents, producing a population density of 592 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 11749 against New York and the nation.
On the economic side, the median household income for ZIP 11749 sits at $116,313 (26% above the New York average), while per-capita income is $46,560. The poverty rate stands at 7.7% and the unemployment rate at 5.5%. On housing, the median home value is $477,400 (26% above the state average) with median rent at $2,019 per month, and 96.0% of occupied units are owner-occupied, a direct signal of whether 11749 behaves more like a homeowner neighborhood or a renter-heavy ZIP.
Education and household profile round out the picture: 32.5% of adults hold a bachelor's degree or higher, the median age is 43.3, and the average commute is 30 minutes. We also surface 10 nearby ZIP codes within roughly 10 miles and 6 additional ZIPs sharing Suffolk County, so you can benchmark 11749 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 11749
Top 5 sectors by establishment count
Which industries have the most business establishments in ZIP 11749.
- Professional, scientific, and technical services
Professional, scientific, and technical services
67 establishments
- Wholesale trade
Wholesale trade
57 establishments
- Construction
Construction
42 establishments
- Retail trade
Retail trade
40 establishments
- Health care and social assistance
Health care and social assistance
36 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 11749, Islandia, 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
3,345
Population
5.7
Area (sq mi)
592
People / sq mi
New York
Time Zone
standard
ZIP Type
Who lives in ZIP 11749?
43.3
Median Age
53.9%
Male
46.1%
Female
39.0%
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?
$116,313
Median Household Income
+26% vs state
$46,560
Per Capita Income
7.7%
Poverty Rate
5.5%
Unemployment Rate
30.3 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?
1,288
Total Housing Units
1,217
Occupied Units
71
Vacant Units
2.86
Avg Household Size
Occupancy Type
$477,400
Median Home Value
+26% vs state
$2,019
Median Rent
1969
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
+1.7%
YoY Change (2024)
272
HPI Index (2000 = 100)
+172%
Total Change Since 2000
Home values in ZIP 11749 have increased 1.7% over the past year (2024). Since 2000, this ZIP has seen +172% cumulative appreciation.
| Year | Annual Change | HPI Index |
|---|---|---|
| 2020 | -1.3% | 202 |
| 2021 | +9.7% | 222 |
| 2022 | +22.8% | 272 |
| 2023 | -1.7% | 267 |
| 2024 | +1.7% | 272 |
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 399 business establishments in ZIP 11749, employing approximately 8,492 people with a combined annual payroll of $550,788,000.
399
Businesses
8,492
Employees
$550.8M
Annual Payroll
16
Industry Sectors
| Industry | Establishments | % of Total |
|---|---|---|
| Professional, scientific, and technical services | 67 | 16.8% |
| Wholesale trade | 57 | 14.3% |
| Construction | 42 | 10.5% |
| Retail trade | 40 | 10.0% |
| Health care and social assistance | 36 | 9.0% |
| Finance and insurance | 30 | 7.5% |
| Administrative and support and waste management and remediation services | 30 | 7.5% |
| Manufacturing | 20 | 5.0% |
| Real estate and rental and leasing | 17 | 4.3% |
| Other services (except public administration) | 16 | 4.0% |
| Accommodation and food services | 15 | 3.8% |
| Transportation and warehousing | 12 | 3.0% |
| Information | 5 | 1.3% |
| Arts, entertainment, and recreation | 5 | 1.3% |
| Educational services | 4 | 1.0% |
| Management of companies and enterprises | 3 | 0.8% |
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 11749 vs 11722 →
| ZIP Code | City | Population | Distance |
|---|---|---|---|
| 11722 | Central Islip, NY | 35,177 | 2.1 mi |
| 11788 | Hauppauge, NY | 16,821 | 2.4 mi |
| 11752 | Islip Terrace, NY | 9,531 | 3.5 mi |
| 11779 | Ronkonkoma, NY | 38,421 | 2.9 mi |
| 11767 | Nesconset, NY | 14,530 | 2.9 mi |
| 11716 | Bohemia, NY | 10,700 | 3.4 mi |
| 11787 | Smithtown, NY | 35,772 | 3.8 mi |
| 11780 | Saint James, NY | 15,524 | 5.9 mi |
| 11739 | Great River, NY | 1,223 | 5.4 mi |
| 11730 | East Islip, NY | 14,712 | 6.2 mi |
More ZIP Codes in Suffolk County
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Frequently Asked Questions
What county is ZIP code 11749 in? ▼
What is the population of ZIP code 11749? ▼
What is the median household income in ZIP 11749? ▼
What is the average home value in ZIP 11749? ▼
What is the demographic makeup of ZIP 11749? ▼
How many businesses are in ZIP code 11749? ▼
What are the main industries in ZIP code 11749? ▼
How have home values changed in ZIP code 11749? ▼
What is the education level in ZIP code 11749? ▼
What is the average commute time in ZIP 11749? ▼
What percentage of residents own vs. rent in ZIP 11749? ▼
What is the poverty rate in ZIP code 11749? ▼
ZIP Code Research Guides
Official Data Resources for Islandia, 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.