ZIP Code Tabulation Area · New York

ZIP Code 11791: Syosset, NY

ZIP Code 11791 (Syosset, Nassau County, New York) has an estimated 25,520 residents in 8,113 households. The median household income is $202,962, the median home value is $937,700 and the median gross rent is $3,019/mo. Figures are U.S. Census Bureau American Community Survey 2020–2024 5-year estimates for the matching ZIP Code Tabulation Area.

American Community Survey 2020–2024 5-year estimates · Updated

Total population

25,520

Margin of error ±1,521

Median household income

$202,962

Margin of error ±$22,340

Median home value

$937,700

Margin of error ±$24,234

Median gross rent

$3,019/mo

Margin of error ±$1,294

Median age

43.2 yrs

Margin of error ±1.0 yrs

Mean travel time to work

39.8 min

Margin of error ±4.0 min

How ZIP 11791 compares with New York and the U.S.

State and national figures are the Census Bureau's own estimates for those areas from the same ACS release, not averages of ZIP codes.

Median age

ZIP 1179143.2 yrsNew York39.8 yrsUnited States38.9 yrs

Median household income

ZIP 11791$202,962New York$85,974United States$80,734

Per capita income

ZIP 11791$88,245New York$50,712United States$44,673

Poverty rate

ZIP 117914.1%New York14.0%United States12.5%

Unemployment rate

ZIP 117914.9%New York6.4%United States5.2%

Bachelor's degree or higher

ZIP 1179170.4%New York40.2%United States35.7%

Median home value

ZIP 11791$937,700New York$423,800United States$332,700

Median gross rent

ZIP 11791$3,019/moNew York$1,621/moUnited States$1,413/mo

Owner-occupied homes

ZIP 1179193.5%New York54.3%United States65.2%

Mean travel time to work

ZIP 1179139.8 minNew York32.6 minUnited States26.4 min

Worked from home

ZIP 1179125.5%New York14.9%United States15.1%

All figures for ZIP 11791

Each estimate has a 90% margin of error: the true value is likely within that range. * marks estimates with a large margin of error (a coefficient of variation above 30%, or ±10 percentage points or more for rates).

ZIP 11791 — ACS 2020–2024 5-year estimates
MeasureZIP 11791Margin of errorNew YorkUnited States
Total population25,520±1,52119,852,366334,922,499
Median age43.2 yrs±1.0 yrs39.8 yrs38.9 yrs
Households8,113±4717,722,646129,227,496
Median household income$202,962±$22,340$85,974$80,734
Per capita income$88,245±$6,160$50,712$44,673
Poverty rate4.1%±1.3 pts14.0%12.5%
Unemployment rate4.9%±1.9 pts6.4%5.2%
Bachelor's degree or higher70.4%±2.7 pts40.2%35.7%
Median home value$937,700±$24,234$423,800$332,700
Median gross rent$3,019/mo±$1,294$1,621/mo$1,413/mo
Owner-occupied homes93.5%±1.5 pts54.3%65.2%
Mean travel time to work39.8 min±4.0 min32.6 min26.4 min
Worked from home25.5%±2.6 pts14.9%15.1%

Race and Hispanic or Latino origin

Shares of the total population by the Census Bureau's race and Hispanic or Latino origin categories (table B03002), listed in the Census Bureau's order. People self-identify on the survey.

Population by race and Hispanic or Latino origin, ZIP 11791
GroupZIP 11791New YorkUnited States
White alone, not Hispanic or Latino58.3%52.8%57.4%
Black or African American alone, not Hispanic or Latino1.1%13.4%11.9%
American Indian and Alaska Native alone, not Hispanic or Latino0.2%0.2%0.5%
Asian alone, not Hispanic or Latino33.1%9.0%5.9%
Native Hawaiian and Other Pacific Islander alone, not Hispanic or Latino0.0%0.0%0.2%
Some other race alone, not Hispanic or Latino0.4%1.0%0.6%
Two or more races, not Hispanic or Latino1.9%3.8%4.3%
Hispanic or Latino (of any race)4.9%19.8%19.3%

Where ZIP 11791 is

State
New York
Main county
Nassau County
Largest overlapping place
Syosset (40% of the ZIP's land area)
Land area
12.51 sq mi· about 2,040 people per sq mi

County and place names come from the Census Bureau's 2020 ZCTA relationship files. A ZIP code's mailing city, set by the U.S. Postal Service, can differ from these names.

Other ZIP codes in Nassau County

11576 East Hills, NY11577 Roslyn Heights, NY11579 Sea Cliff, NY11580 Valley Stream, NY11581 Valley Stream, NY11590 Westbury, NY11596 Williston Park, NY11598 Woodmere, NY11709 Bayville, NY11710 North Bellmore, NY11714 Bethpage, NY11732 Muttontown, NY11753 Jericho, NY11756 Levittown, NY11758 Massapequa, NY11762 Massapequa Park, NY11765 Mill Neck, NY11771 Oyster Bay Cove, NY11783 Seaford, NY11793 Wantagh, NY11797 Woodbury, NY11801 Hicksville, NY11803 Plainview, NY11804 Old Bethpage, NY

See every ZIP code in New York, or compare ZIP 11791 with another ZIP code.

Census figures describe residents as a group and cannot tell you about any one home or street. For a specific address, check local government and housing records.

About ZIP codes and ZCTAs: the Census Bureau publishes statistics for ZIP Code Tabulation Areas, which approximate USPS ZIP code delivery areas. Learn how they differ.

Sources

  • U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, detailed tables B01003, B01002, B11001, B19013, B19301, B17001, B23025, B15003, B25077, B25064, B25003, B08013, B08303, B08301, B03002 — snapshot Oct 26, 2026.
  • U.S. Census Bureau, 2020 ZCTA5 relationship files (county and place).
  • Data: U.S. Census Bureau, American Community Survey 5-year estimates (detailed tables) and 2020 Census ZCTA relationship files. This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau. These agencies do not endorse OpenZIP.