ZIP code 11791: Syosset, NY
11791 is a ZIP code in Syosset, New York, mainly in Nassau County, part of the New York-Newark-Jersey City, NY-NJ metro area. About 25,520 people live here.
- Population
- 25,520
- Median household income
- $202,962
- Typical home value
- $1,224,500+6.9% in 12 months
- Median rent
- $3,019gross, per month
- Median age
- 43.2
- Homeowners
- 93.5%of occupied homes
Shaded: ZIP code 11791's area. Click anywhere on the map to see which ZIP code it's in.
ZIP codes within 10 milesWithin 25 miles
ZIP code 11791 details
| City | Syosset |
|---|---|
| State | New York |
| County | Nassau County |
| Metro area | New York-Newark-Jersey City, NY-NJ |
| Time zone | Eastern Time (UTC−5), observes daylight saving time |
| Type | Standard (delivery area) |
| Land area | 12.5 sq mi, plus 0.3 sq mi of water |
| Population density | 2,040 people per sq mi |
| Bachelor's degree or higher | 70.4% of adults 25+ |
| Average commute | 39.8 minutes |
| Center coordinates | 40.82777, -73.50277 |
Median rent in 11791 by bedrooms
| Size | Median gross rent |
|---|---|
| Studio | $328/mo |
| 2 bedrooms | $2,594/mo |
| 3 bedrooms | $3,309/mo |
| 4 bedrooms | $3,501/mo |
Gross rent includes utilities paid by the tenant. ACS 2020–2024; sizes with too few rentals to estimate are left out.
ZIP codes near 11791
| ZIP code | City | Distance | Population |
|---|---|---|---|
| 11773 | Syosset, NY | 0.1 mi | — |
| 11797 | Woodbury, NY | 1.7 mi | 9,402 |
| 11732 | East Norwich, NY | 2.2 mi | 3,228 |
| 11853 | Jericho, NY | 3.1 mi | — |
| 11753 | Jericho, NY | 3.3 mi | 12,435 |
| 11771 | Oyster Bay, NY | 3.4 mi | 10,908 |
| 11724 | Cold Spring Harbor, NY | 3.5 mi | 3,073 |
| 11803 | Plainview, NY | 3.5 mi | 29,713 |
Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology
Buying a home in 11791?
A typical home in ZIP code 11791 is worth about $1,224,500 (Zillow Home Value Index). The median household here earns $202,962 a year. See what buying here would cost per month, with New York average taxes and insurance filled in.
Monthly payment for a $1,224,500 homeWhat can a $202,962 income afford?Rental property numbers
About ZIP code 11791
What city is ZIP code 11791?
ZIP code 11791 is in Syosset, NY, in Nassau County.
What county is ZIP code 11791 in?
11791 is mainly in Nassau County, New York.
What is the population of ZIP code 11791?
About 25,520 people live in ZIP code 11791, according to the American Community Survey 2020–2024 5-year estimates.
What time zone is ZIP code 11791 in?
11791 is in Eastern Time (UTC−5). It observes daylight saving time.
What other ZIP codes does Syosset have?
Syosset, NY also uses 11773.