Postal Codes

11951 ZIP Code

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ZIP code 11951 covers Mastic Beach, New York, with a population of about 15,830 and a median household income of $108,877.

Population
15,8303,299 per square mile
Median age
38.4about the US average
Median household income
$108,8771.3× the New York median
Poverty rate
22.2%9.8 points above the US average
Median home value
$321,20020% below the New York median
Median rent
$2,3131.5× the New York median
Degree or higher
20.5%14.5 points below the US average
Homeownership
81.2%16.2 points above the US average
Time zone
Eastern UTC-05:00observes daylight saving time
Businesses
144

Where 11951 is

Mastic Beach, New York — the area the Census Bureau draws for this ZIP code. ZIP codes are sets of delivery routes rather than areas, so this is the Census approximation of one, not a Postal Service boundary.

People and households

American Community Survey 2019–2023 five-year estimates

Population15,830
Median age38.4
Family households75.6%
Born outside the US7.4%
Speaks a language other than English at home16.3%
White (non-Hispanic)68%
Black (non-Hispanic)6.5%
Asian (non-Hispanic)2.5%
Hispanic or Latino17%
Veterans4.1%
Population by age
MaleFemale0-45-910-1415-1920-2425-3435-4445-5455-6465-7475-8485+
Income and poverty

American Community Survey 2019–2023 five-year estimates

Median household income$108,877
Income per person$36,812
Poverty rate22.2%
Households on SNAP or cash assistance14.6%

Household income distribution

Under $10k11.2%
$10–15k0.7%
$15–20k2.1%
$20–25k1.4%
$25–30k4.0%
$30–35k4.3%
$35–40k3.0%
$40–45k1.2%
$45–50k0.8%
$50–60k2.4%
$60–75k5.0%
$75–100k9.3%
$100–125k19.2%
$125–150k14.6%
$150–200k9.3%
$200k or more11.4%

Income as declared to the IRS

Filed returns rather than survey responses, so this counts tax units and not households.

Tax returns filed6,800
Mean adjusted gross income$58,564
Returns declaring $200,000 or more2.2%
Returns, under $25k30.1%
Returns, $25k–$50k24.3%
Returns, $50k–$75k18.1%
Returns, $75k–$100k10.9%
Returns, $100k–$200k14.4%
Returns, $200k or more2.2%
Housing

American Community Survey 2019–2023 five-year estimates

Median home value$321,200
Median gross rent$2,313
Rent as a share of household income51%
Owner-occupied81.2%
Vacant homes7.5%
Median year built1970

What the homes are

Detached house96.3%
Attached house2%
2 to 4 units1.2%
20 or more units0.3%
Mobile home0.2%
Work, commuting and education

American Community Survey 2019–2023 five-year estimates

Unemployment rate6.7%
Bachelor's degree or higher20.5%
High school diploma or higher86.2%
Works from home7.8%
Drives to work alone80.7%
Takes public transport1.6%
Commutes 45 minutes or more32.2%
Health

CDC PLACES 2025 release, model-based estimates. These are modelled small-area estimates for adults, not counts of diagnosed cases.

Obesity34.8% 1.4 pts above the national average of 33.4%
Diagnosed diabetes11.1% 0.9 pts below the national average of 12%
Currently smokes14.5% 1.3 pts above the national average of 13.2%
High blood pressure33% 1.1 pts below the national average of 34.1%
Fair or poor general health20.7% same as the national average of 20.3%
No health insurance (18–64)9.5% 1.8 pts below the national average of 11.3%
Depression18.4% 3.5 pts below the national average of 21.9%
No leisure-time physical activity29.7% 4.3 pts above the national average of 25.4%
Arthritis24.1% 1 pts below the national average of 25.1%
Binge drinking16.7% 0.7 pts above the national average of 16%
Taking blood pressure medication74.4% same as the national average of 74.7%
Cancer (non-skin)7.1% 0.6 pts below the national average of 7.7%
Current asthma11.5% 1.1 pts above the national average of 10.4%
Coronary heart disease6% same as the national average of 6.2%
Routine check-up in past year79.7% 3 pts above the national average of 76.7%
Cholesterol screening87.5% 1.6 pts above the national average of 85.9%
Cognitive disability15.1% same as the national average of 14.8%
Colorectal screening61% 3.3 pts below the national average of 64.3%
COPD7.1% 0.5 pts above the national average of 6.6%
Visited a dentist58.1% 3.2 pts below the national average of 61.3%
Any disability31% same as the national average of 30.7%
Lacks emotional support26.6% 1.8 pts above the national average of 24.8%
Food insecurity20.5% 3.4 pts above the national average of 17.1%
Received food stamps18.3% 4 pts above the national average of 14.3%
Hearing disability5.5% 1.2 pts below the national average of 6.7%
High cholesterol38.2% 2 pts above the national average of 36.2%
Housing insecurity17.4% 3.6 pts above the national average of 13.8%
Independent living disability8.9% 0.5 pts above the national average of 8.4%
Lacks transport10.3% 1.1 pts above the national average of 9.2%
Loneliness32.1% 2.3 pts below the national average of 34.4%
Mammography use76.6% 0.7 pts above the national average of 75.9%
Poor mental health (14+ days)18.1% 1.3 pts above the national average of 16.8%
Mobility disability14.5% 0.5 pts above the national average of 14%
Poor physical health (14+ days)14.5% 1 pts above the national average of 13.5%
Self-care disability4.3% same as the national average of 4%
Utility shut-off threat10.3% 1.5 pts above the national average of 8.8%
Sleeps under 7 hours42.7% 6.3 pts above the national average of 36.4%
Stroke3.3% same as the national average of 3.4%
All natural teeth lost14.8% 1.8 pts above the national average of 13%
Vision disability5.7% same as the national average of 5.6%
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Business and employment

Census ZIP Code Business Patterns 2022

Business establishments144
People employed500
Annual payroll$19,698,000
Natural hazard risk

FEMA National Risk Index, estimated for this ZIP code from census tract data — the NRI is not published per ZIP.

Overall riskHigher than 25.1% of US census tracts
FEMA ratingVery Low to Relatively Low across the 5 census tracts this ZIP code covers
Expected annual loss20.6 out of 100
Community resilience90.9 out of 100

By hazard

Score is out of 100 and is the area-weighted average across the census tracts this ZIP code covers. The rating beside it is the highest any one of those tracts carries.

Coastal flooding95.4Relatively High at its worst in this ZIP code
Hurricane70.4Relatively Moderate at its worst in this ZIP code
Winter weather60.6Relatively Moderate at its worst in this ZIP code
Earthquake41.5Relatively Low at its worst in this ZIP code
Ice storm41.1Relatively Low at its worst in this ZIP code
Cold wave37.9Relatively Moderate at its worst in this ZIP code
Wildfire34.1Very Low at its worst in this ZIP code
Lightning31.6Relatively Low at its worst in this ZIP code
Strong wind31.2Relatively Low at its worst in this ZIP code
Landslide30.6Very Low at its worst in this ZIP code
River flooding30.5Relatively Moderate at its worst in this ZIP code
Tornado15.5Very Low at its worst in this ZIP code
Heat wave11.9Relatively Low at its worst in this ZIP code
Hail5.6Very Low at its worst in this ZIP code
Compared with New York and the United States

State and national columns are figures for those areas, not for this ZIP code. American Community Survey 2019–2023 five-year estimates

This ZIPNew YorkUnited States
Median household income$108,877$84,578$78,538
Income per person$36,812$49,520$43,289
Poverty rate22.2%13.7%12.4%
Median home value$321,200$403,000$303,400
Median gross rent$2,313$1,576$1,348
Homeownership81.2%54.3%65%
Bachelor's degree or higher20.5%39.6%35%
Unemployment rate6.7%6.2%5.2%
Works from home7.8%13.3%13.5%
Born outside the US7.4%22.6%13.9%
Median age38.439.638.7
Climate

NOAA US Climate Normals 1991-2020, from the nearest weather station with a full year of records. The station and its distance are named above, because a station forty kilometres away describes somewhere else.

Weather stationSHIRLEY BROOKHAVEN AP, NY US6.4 km away
Rain in a year44 in

Average high and low by month

January39.2°F / 23.9°F2.97 in rain
February41°F / 24.7°F3.1 in rain
March47.4°F / 31.1°F4.62 in rain
April57.7°F / 39.6°F4.06 in rain
May67.6°F / 49.4°F3.47 in rain
June76.6°F / 59.5°F3.7 in rain
July82.5°F / 65.7°F3.24 in rain
August81.2°F / 64.5°F3.04 in rain
September74.4°F / 57.2°F3.9 in rain
October63.9°F / 45.9°F3.99 in rain
November53.9°F / 36.7°F3.65 in rain
December44.5°F / 29.3°F4.5 in rain
Access to food

USDA Food Access Research Atlas, estimated for this ZIP code from census tract data. Each figure is the share of the ZIP code's land area that falls in a tract carrying that flag.

Low income and far from a supermarketNone of this ZIP code
Far from a supermarket80% of this ZIP code's area
No vehicle and far from a supermarketNone of this ZIP code
School districts

NCES Geographic Relationship File 2025, which states the association between each district and each ZIP code tabulation area directly. Elementary and secondary districts can cover the same ground, so shares need not total 100%.

William Floyd Union Free School District100% of this ZIP code's land area
Community and walkability

CDC/ATSDR Social Vulnerability Index 2022 and the EPA National Walkability Index, both estimated for this ZIP code from census tract data. Vulnerability figures are national percentile ranks, not measurements.

Overall social vulnerability38more vulnerable than 38% of US census tracts
Socioeconomic status47more vulnerable than 47% of US census tracts
Household characteristics61more vulnerable than 61% of US census tracts
Racial and ethnic minority status49more vulnerable than 49% of US census tracts
Housing type and transport18more vulnerable than 18% of US census tracts
Walkability7.5 out of 20Below average
Nearby ZIP codes

The closest ZIP codes by centre point, which is not the same as sharing a border.

11719 Brookhaven, NY3.8 km away
11967 Shirley, NY4.1 km away
11950 Mastic, NY4.5 km away
11955 Moriches, NY5.5 km away
11934 Center Moriches, NY6.1 km away
11713 Bellport, NY7.9 km away
11980 Yaphank, NY9.6 km away
11949 Manorville, NY9.6 km away
Location, counties and time zone

County shares from Census 2020 ZCTA relationship files. Time zone from the USDOT National Transportation Atlas, which renders the boundaries written into 49 CFR Part 71.

Suffolk County100% of this ZIP code's land area
Time zoneEastern (UTC-05:00 standard)
Daylight saving timeObserved
Land area4.8 sq mi
Water area1.09 sq mi
Population density3,299 people per sq mi
Latitude, longitude40.7657, -72.8537

Figures are published for this ZIP code or its Census tabulation area unless a section says otherwise. Estimates whose margin of error made them unreliable are omitted rather than shown. Sources: US Census Bureau, CDC, IRS.

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