ZIP Code 11791, New York
ZIP Code 11791 profile, demographic data, and geographic information.
ZCTA5 11791 is a 5-digit ZIP Code area located in Nassau County, New York. As of official census estimates, it has a reported population of 25,520. The land area covers 12.51 sq mi. [1]
Demographics & Population
| Demographic Metric | Estimate / Count | Margin of Error | Survey Period / Source |
|---|---|---|---|
| Total Population | 25,520 | ±1,521 | 2020-2024 / Census ACS 5-Year 2024 |
| Median Age | 43.2 yrs | ±1 | 2020-2024 / Census ACS 5-Year 2024 |
| Total Households | 8,113 | ±471 | 2020-2024 / Census ACS 5-Year 2024 |
Source: U.S. Census Bureau (PEP, ACS 5-Year).
Housing & Real Estate Profile
| Housing Metric | Estimate / Value | Margin of Error |
|---|---|---|
| Total Housing Units | 8,322 | ±475 |
| Occupied Housing Units | 8,113 | ±471 |
| Vacant Housing Units | 209 | ±106 |
| Median Home Value | $937,700 | ±$24,234 |
| Median Gross Rent | $3,019 | ±$1,294 |
Source: U.S. Census Bureau ACS 5-Year (2020-2024).
Economy & Workforce
| Economic Metric | Estimate / Value | Margin of Error |
|---|---|---|
| Median Household Income | $202,962 | ±$22,340 |
| Per Capita Income | $88,245 | ±$6,160 |
| Poverty Rate | 4.1% | ±1.3% |
| Population Below Poverty Level | 1,052 | ±334 |
| Unemployment Rate | 4.9% | ±1.9% |
| Civilian Labor Force, Employed | 11,821 | ±653 |
| Broadband Internet Rate | 97.2% | ±1.4% |
Source: U.S. Census Bureau ACS 5-Year (2020-2024).
Local Government & Public Administration
Authoritative general-purpose local government units serving this area
U.S. Census Bureau GUS (2026) / GMAF
| Government Unit | Unit Type | Jurisdiction Role | Contact / Address |
|---|---|---|---|
|
GUS Population: 1,392,438 (2024)
ID: 170425
|
County | Official County Government |
Contact: COUNTY EXECUTIVE
1550 FRANKLIN AVE, MINEOLA NY 11501-4820
|
Education
Listing 10 local institutions (NCES 2024-2025)
External reference via K12Guides
| Institution | Type | Grades | Location |
|---|---|---|---|
| Regular School Nearby | KG-05 | LEVITTOWN, NY | |
| Regular School Nearby | KG-12 | HEMPSTEAD, NY | |
| Regular School Nearby | KG-06 | WYANDANCH, NY | |
| Regular School Nearby | KG-12 | UNIONDALE, NY | |
| Regular School Nearby | KG-05 | SMITHTOWN, NY | |
| Regular School Nearby | 06-08 | SMITHTOWN, NY | |
| Regular School Nearby | KG-03 | SAINT ALBANS, NY | |
| Regular School Nearby | KG-05 | NORTH MASSAPEQUA, NY | |
| Regular School Nearby | KG-05 | LINDENHURST, NY | |
| Regular School Nearby | 06-08 | NEW ROCHELLE, NY |
Source: k12guides.com.
Community Facilities & Infrastructure
Displaying 10 civic institutions across 2 datasets queried
CMS • IPEDS • IMLS
| Facility Name | Category | Relationship | Address / Location | Contact |
|---|---|---|---|---|
|
SUNY Old Westbury
|
College | 4.1 mi away | 223 Store Hill Rd, Old Westbury, NY, 11568-0210 |
5168763000
|
|
SYOSSET PUBLIC LIBRARY
|
Library | 2.0 mi away | 225 SOUTH OYSTER BAY ROAD, SYOSSET, NY, 11791 |
(516) 921-7161
|
|
Veeb Nassau County School of Practical Nursing
|
College Vocational | 4.3 mi away | 30 East Cherry Street, Hicksville, NY, 11801-4302 |
5165721704
|
|
JERICHO PUBLIC LIBRARY
|
Library | 2.9 mi away | 1 MERRY LANE, JERICHO, NY, 11753 |
(516) 935-6790
|
|
Long Island Nail Skin & Hair Institute
|
College Vocational | 4.8 mi away | 1055 Stewart Avenue, Bethpage, NY, 11714 |
5165204800
|
|
PLAINVIEW-OLD BETHPAGE PUBLIC LIBRARY
|
Library | 3.9 mi away | 999 OLD COUNTRY ROAD, PLAINVIEW, NY, 11803 |
(516) 938-0077
|
|
Farmingdale State College
|
College | 6.4 mi away | 2350 Broadhollow Road, Farmingdale, NY, 11735-1021 |
9344202000
|
|
HICKSVILLE PUBLIC LIBRARY
|
Library | 4.7 mi away | 169 JERUSALEM AVENUE, HICKSVILLE, NY, 11801 |
(516) 931-1417
|
|
Hunter Business School
|
College | 6.9 mi away | 3601 Hempstead Tpk Unit19, Levittown, NY, 11756-1375 |
5167961000
|
|
MELVILLE BRANCH
|
Library | 5.0 mi away | 510 SWEET HOLLOW ROAD, MELVILLE, NY, 11747 |
(631) 421-4535
|
Distances calculated from authoritative source coordinates. Source: CMS, IMLS, NCES IPEDS.
Climate & Weather Observations
NOAA Monthly Climate Normals
Observation Station: Climate data reflects NOAA 1991–2020 standard normals recorded at CENTERPORT, NY US, located 7.8 miles from ZCTA5 11791. Local microclimates, topography, and elevation may cause municipal conditions to differ.
| Month | High (°F) | Low (°F) | Mean (°F) | Precip (in) | Snow (in) |
|---|---|---|---|---|---|
| January | 37.9° | 24.5° | 31.2° | 3.72" | — |
| February | 40.0° | 25.4° | 32.7° | 3.09" | — |
| March | 47.3° | 31.3° | 39.3° | 4.24" | — |
| April | 59.8° | 40.9° | 50.4° | 4.09" | — |
| May | 69.6° | 50.5° | 60.1° | 3.88" | — |
| June | 78.4° | 60.2° | 69.3° | 4.29" | — |
| July | 83.2° | 65.8° | 74.5° | 3.83" | — |
| August | 81.4° | 65.0° | 73.2° | 4.32" | — |
| September | 74.3° | 59.0° | 66.7° | 4.67" | — |
| October | 62.6° | 48.8° | 55.7° | 4.26" | — |
| November | 52.2° | 38.7° | 45.5° | 3.48" | — |
| December | 43.1° | 30.5° | 36.8° | 4.64" | — |
Source: NOAA U.S. Climate Normals (1991–2020).
Local Weather Forecast
Weather forecast data is currently unavailable in the local cache.
Nearby Cities & Communities
Listing adjacent communities by spatial proximity (miles)
Proximity discovery
| Community Name | Classification | Distance | Population |
|---|---|---|---|
| Syosset CDP | CDP | 0.8 mi | — |
| Woodbury CDP | CDP | 1.7 mi | — |
| Muttontown village | Village | 1.8 mi | — |
| East Norwich CDP | CDP | 2.0 mi | — |
| Oyster Bay Cove village | Village | 2.3 mi | — |
| Laurel Hollow village | Village | 2.4 mi | — |
Sources & Data Provenance
- Geographic Classification & Identifiers: U.S. Census Bureau Gazetteer (2026) and TIGER/Line Shapefiles. GEOID: 11791. • Official Source Dataset →
- Socioeconomic & Housing Metrics: U.S. Census Bureau American Community Survey (ACS) 5-year estimates and Population Estimates Program (PEP). Margin of Error (MOE) intervals are reported where published; suppressed values are never estimated or replaced with false zeros.
- Civic Directory Datasets: Centers for Medicare & Medicaid Services (CMS Hospital Directory), National Center for Education Statistics (NCES IPEDS Postsecondary Directory), and Institute of Museum and Library Services (IMLS Public Libraries Survey). Airport landing facilities are provided by airport-data.com.
- Weather & Climate Observations: National Oceanic and Atmospheric Administration (NOAA) U.S. Climate Normals 1991–2020 and National Weather Service (NWS) point forecasts.