| ZIP Code | 11791 |
|---|---|
| City | Syosset |
| State | New York (NY) |
| County | Nassau County |
| Area Code | 363/516 |
| Elevation | 204 ft |
| Latitude | 40.827771 |
|---|---|
| Longitude | -73.502767 |
| Timezone | New York (DST) |
| FIPS | 36059 |
| ZIP Type | Standard |
| Status | Active |
Race & Ethnicity
Age Breakdown
Key Indicators
| Median Age | 43.0 yrs |
|---|---|
| Avg Household Size | 3.10 |
| Below Poverty | 3.5% ▼ 65% below avg |
| College Grads | 76.5% ▲ 97% above avg |
| Unemployment | 4.9% ≈ Avg |
| No HS Diploma | 142 (0.9%) |
| HS Graduate | 1,927 (12.1%) |
| Some College | 655 (4.1%) |
| Associates | 1,009 (6.3%) |
| Bachelors | 924 (5.8%) |
| Graduate Degree | 11,233 (70.7%) |
Education
Housing Tenure
Home Value Distribution
Financials
| Median HH Income | $204,357 ▲ 168% above avg ↑ 17% since 2019 |
|---|---|
| Median Home Value | $918,900 ▲ 230% above avg ↑ 30% since 2019 |
| Home/Income Ratio | 4.5x (nat avg ~3.5x) |
| Median Rent | $3,091/mo ↑ 12% since 2019 |
| Total Units | 8,316 |
| Vacant Units | 270 |
| Avg HH Size | 3.10 |
Income Distribution
How People Get to Work
Commute Time
Year Built
Summary
| Total Units | 8,316 |
|---|---|
| Vacant | 270 |
| Owner Occupied | 92.8% |
| Renter Occupied | 7.2% |
| Avg HH Size | 3.10 |
ZIP code 11791 is located in Syosset, New York, within Nassau County. With a population of 25,194, this is a moderately populated ZIP code with a middle-aged community — the median age is 43 years. Economically, 11791 is a affluent ZIP code: the median household income of $204,357 is more than double the national average.
Real estate in ZIP code 11791 represents among the most expensive housing markets in the country. The median home value of $918,900 is more than double the national average. Renters can expect to pay around $3,091 per month in median rent. Homeownership is strong here — 92.8% of occupied units are owner-occupied, suggesting an established, stable residential community. Median home values have increased by 30% since 2019.
The population of 11791 is majority White (58.40%). Residents are highly educated — 76.5% hold a bachelor's degree or higher, which is significantly above the national average. Poverty affects a relatively small share of residents at 3.5%. Household income has grown by 17% since 2019.
The unemployment rate in 11791 stands at 4.9%, which is near the national average. About 24% of workers are remote. As in most parts of the country, driving alone is the dominant commute mode at 54%.
Overall, ZIP code 11791 in Syosset, NY is characterized as affluent, highly educated, a middle-aged community, and predominantly owner-occupied. With 25,194 residents, a median household income of $204,357, and a median home value of $918,900, it offers a clear picture of life in this part of New York.