11777 ZIP Code — Port Jefferson, NY

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ZIP code 11777 covers Port Jefferson, New York, with a population of about 9,347 and a median household income of $148,519.

Population: 9,3472,128 per square mile
Median age: 45.26.5 points above the US average
Median household income: $148,5191.8× the New York median
Poverty rate: 5%7.4 points below the US average
Typical home value: $800,022up 26% in five years
Median rent: $2,2611.4× the New York median
Degree or higher: 68.7%33.7 points above the US average
Homeownership: 74.3%9.3 points above the US average
Time zone: Eastern UTC-05:00observes daylight saving time
Businesses: 449

Where 11777 is

Port Jefferson, 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

Population	9,347
Median age	45.2
Family households	62.1%
Born outside the US	15.8%
Speaks a language other than English at home	18.9%
White (non-Hispanic)	78.5%
Black (non-Hispanic)	1.1%
Asian (non-Hispanic)	6.3%
Hispanic or Latino	10.8%
Veterans	3.5%

Population by age

Income and poverty

American Community Survey 2019–2023 five-year estimates

Median household income	$148,519
Income per person	$77,057
Poverty rate	5%
Households on SNAP or cash assistance	3.6%

Household income distribution

Under $10k	0.7%
$10–15k	1.8%
$15–20k	0.9%
$20–25k	0.2%
$25–30k	1.2%
$30–35k	1.9%
$35–40k	1.2%
$40–45k	2.9%
$45–50k	1.6%
$50–60k	3.4%
$60–75k	7.1%
$75–100k	9.0%
$100–125k	7.6%
$125–150k	11.4%
$150–200k	13.0%
$200k or more	36.1%

Income as declared to the IRS

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

Tax returns filed	4,990
Mean adjusted gross income	$194,862
Returns declaring $200,000 or more	20.6%
Returns, under $25k	20.0%
Returns, $25k–$50k	13.6%
Returns, $50k–$75k	11.2%
Returns, $75k–$100k	10.2%
Returns, $100k–$200k	24.2%
Returns, $200k or more	20.6%

Housing

American Community Survey 2019–2023 five-year estimates

Median home value	$655,900
Median gross rent	$2,261
Rent as a share of household income	25.2%
Owner-occupied	74.3%
Vacant homes	6.8%
Median year built	1971

What the homes are

Detached house	68.3%
Attached house	10.1%
2 to 4 units	8.3%
5 to 19 units	8.6%
20 or more units	4.7%

Home values and rents today

Zillow Home Value Index and Zillow Observed Rent Index, courtesy of Zillow. Monthly and current, where the Census figures above are a five-year average and are capped at $2,000,000.

Typical home value	$800,022as of 2026-07
Typical home value, 1 year	up 6.3%
Typical home value, 5 years	up 26%
Typical home value, 10 years	up 58.5%
Typical asking rent	$3,441as of 2026-07

Typical home value since 2000

$323,906 in 2002 to $800,022 in 2026.

Work, commuting and education

American Community Survey 2019–2023 five-year estimates

Unemployment rate	3.5%
Bachelor's degree or higher	68.7%
High school diploma or higher	96.5%
Works from home	12.7%
Drives to work alone	73.7%
Takes public transport	4.5%
Commutes 45 minutes or more	21.7%

Health

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

Obesity	26.3% 7.1 pts below the national average of 33.4%
Diagnosed diabetes	8.5% 3.5 pts below the national average of 12%
Currently smokes	7.2% 6 pts below the national average of 13.2%
High blood pressure	30.5% 3.6 pts below the national average of 34.1%
Fair or poor general health	11.8% 8.5 pts below the national average of 20.3%
No health insurance (18–64)	4.1% 7.2 pts below the national average of 11.3%
Depression	15.9% 6 pts below the national average of 21.9%
No leisure-time physical activity	18.7% 6.7 pts below the national average of 25.4%
Arthritis	24.2% 0.9 pts below the national average of 25.1%
Binge drinking	16.7% 0.7 pts above the national average of 16%
Taking blood pressure medication	78.4% 3.7 pts above the national average of 74.7%
Cancer (non-skin)	10.1% 2.4 pts above the national average of 7.7%
Current asthma	9.9% 0.5 pts below the national average of 10.4%
Coronary heart disease	5.4% 0.8 pts below the national average of 6.2%
Routine check-up in past year	82.8% 6.1 pts above the national average of 76.7%
Cholesterol screening	92.1% 6.2 pts above the national average of 85.9%
Cognitive disability	8.9% 5.9 pts below the national average of 14.8%
Colorectal screening	71.1% 6.8 pts above the national average of 64.3%
COPD	4.6% 2 pts below the national average of 6.6%
Visited a dentist	74.2% 12.9 pts above the national average of 61.3%
Any disability	22.2% 8.5 pts below the national average of 30.7%
Lacks emotional support	19.7% 5.1 pts below the national average of 24.8%
Food insecurity	7.4% 9.7 pts below the national average of 17.1%
Received food stamps	5.4% 8.9 pts below the national average of 14.3%
Hearing disability	5.3% 1.4 pts below the national average of 6.7%
High cholesterol	40.2% 4 pts above the national average of 36.2%
Housing insecurity	7% 6.8 pts below the national average of 13.8%
Independent living disability	5.1% 3.3 pts below the national average of 8.4%
Lacks transport	4.4% 4.8 pts below the national average of 9.2%
Loneliness	26.8% 7.6 pts below the national average of 34.4%
Mammography use	79.3% 3.4 pts above the national average of 75.9%
Poor mental health (14+ days)	12.7% 4.1 pts below the national average of 16.8%
Mobility disability	9.8% 4.2 pts below the national average of 14%
Poor physical health (14+ days)	10.1% 3.4 pts below the national average of 13.5%
Self-care disability	2.3% 1.7 pts below the national average of 4%
Utility shut-off threat	4% 4.8 pts below the national average of 8.8%
Sleeps under 7 hours	34.5% 1.9 pts below the national average of 36.4%
Stroke	2.6% 0.8 pts below the national average of 3.4%
All natural teeth lost	4.5% 8.5 pts below the national average of 13%
Vision disability	3% 2.6 pts below the national average of 5.6%

Business and employment

Census ZIP Code Business Patterns 2022

Business establishments	449
People employed	7,168
Annual payroll	$484,294,000

Natural hazard risk

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

Overall risk	Higher than 8.8% of US census tracts
FEMA rating	Very Low
Expected annual loss	18.5 out of 100
Community resilience	90.9 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.

Landslide	87.3Relatively Low at its worst in this ZIP code
Coastal flooding	83.5Relatively Moderate at its worst in this ZIP code
Hurricane	73.8Relatively Low at its worst in this ZIP code
Winter weather	60.2Relatively Moderate at its worst in this ZIP code
Ice storm	54.2Relatively Low at its worst in this ZIP code
Strong wind	41.7Relatively Low at its worst in this ZIP code
Earthquake	36.2Relatively Low at its worst in this ZIP code
Cold wave	35.9Relatively Low at its worst in this ZIP code
Lightning	31.9Relatively Low at its worst in this ZIP code
Wildfire	27.7Very Low at its worst in this ZIP code
Heat wave	21.1Relatively Low at its worst in this ZIP code
Tornado	19.9Very Low at its worst in this ZIP code
River flooding	16.9Relatively Low at its worst in this ZIP code
Hail	9.9Very 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 ZIP	New York	United States
Median household income	$148,519	$84,578	$78,538
Income per person	$77,057	$49,520	$43,289
Poverty rate	5%	13.7%	12.4%
Median home value	$655,900	$403,000	$303,400
Median gross rent	$2,261	$1,576	$1,348
Homeownership	74.3%	54.3%	65%
Bachelor's degree or higher	68.7%	39.6%	35%
Unemployment rate	3.5%	6.2%	5.2%
Works from home	12.7%	13.3%	13.5%
Born outside the US	15.8%	22.6%	13.9%
Median age	45.2	39.6	38.7

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 station	MT SINAI, NY US3.8 km away
Rain in a year	49 in

Average high and low by month

January	41°F / 26.3°F3.71 in rain
February	42.9°F / 27.8°F3.2 in rain
March	50°F / 32.8°F4.65 in rain
April	63.7°F / 42.8°F4.42 in rain
May	71.7°F / 51.4°F3.89 in rain
June	78.2°F / 61.1°F3.93 in rain
July	83.1°F / 67.5°F3.88 in rain
August	81.8°F / 67°F4.02 in rain
September	74.7°F / 61.3°F4.3 in rain
October	64.8°F / 48.8°F4.24 in rain
November	56°F / 40.3°F3.7 in rain
December	46.1°F / 32.1°F4.56 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 supermarket	None of this ZIP code
Far from a supermarket	97% of this ZIP code's area
No vehicle and far from a supermarket	None 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%.

This ZIP code is served by 3 school districts, so the address decides which one, not the ZIP code.

Port Jefferson Union Free School District	88.3% of this ZIP code's land area
Brookhaven-Comsewogue Union Free School District	5.9% of this ZIP code's land area
Three Village Central School District	5.6% 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 vulnerability	25more vulnerable than 25% of US census tracts
Socioeconomic status	14more vulnerable than 14% of US census tracts
Household characteristics	36more vulnerable than 36% of US census tracts
Racial and ethnic minority status	33more vulnerable than 33% of US census tracts
Housing type and transport	52more vulnerable than 52% of US census tracts
Walkability	8.4 out of 20Below average

Nearby ZIP codes

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

11776 Port Jefferson Station, NY	3.8 km away
11733 East Setauket, NY	4.3 km away
11766 Mount Sinai, NY	4.6 km away
11764 Miller Place, NY	5.9 km away
11794 Stony Brook, NY	7.1 km away
11790 Stony Brook, NY	7.1 km away
11789 Sound Beach, NY	7.4 km away
11727 Coram, NY	8.1 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 County	100% of this ZIP code's land area
Time zone	Eastern (UTC-05:00 standard)
Daylight saving time	Observed
Land area	4.39 sq mi
Water area	2.1 sq mi
Population density	2,128 people per sq mi
Latitude, longitude	40.9457, -73.0611

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.