PlainZIP

East Northport, NY · standard

ZIP Code 11731

Suffolk County, New York - Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.

30,184
1,390/sq mi
$161,132
Median income
$646,600
Median home value
53.2%
Bachelor's or higher

The verdict

East Northport pairs a top-decile household income with top-decile home values, in a low-density, homeowner-dominated area.

Top 3%
household income, US ZIPs
Top 8%
home value, US ZIPs
1,390
people per sq mi
90%
owner-occupied homes

Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 11731 against every reporting US ZIP.

ZIP code 11731 is a densely settled ZIP (a standard USPS delivery area) in East Northport, Suffolk County, New York, with 30,184 residents across 21.7 square miles, a density of 1,390 people per square mile, in the New York time zone.

ZIP 11731 skews affluent, with a median household income of $161,132 (74% above the New York average), while per-capita income is $67,081. Local economic indicators show a 6.0% poverty rate alongside 3.9% unemployment. Median home value sits at $646,600 (71% above the state average), median rent at $2,412 a month, and owner-occupancy at 90.4%.

This is a highly-educated ZIP: 53.2% of adults hold a bachelor's degree or higher, the median age is 46.2, and the average commute is 36 minutes. A geography-based comparison follows: 10 ZIP codes within about 10 miles of 11731, plus 6 more within Suffolk County, give a clearer read than the national average alone.

Every figure on this page is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates (including median rent) and the FHFA House Price Index, no estimates, no proprietary scoring. Verify with Census →

Top industries in ZIP 11731

Top 5 sectors by establishment count in East Northport, NY

Which industries have the most business establishments in ZIP 11731.

establishments

What this shows Establishment counts come from the Census ZIP Code Business Patterns program, which counts physical business locations rather than employees or revenue.

Source U.S. Census Bureau · ZIP Code Business Patterns (ZBP) As of 2023

Source: U.S. Census Bureau, American Community Survey 5-Year Estimates + ZIP Code Business Patterns + FHFA HPI ACS demographics and median rent, ZBP business establishments, FHFA HPI for ZIP 11731, East Northport, NY · 2023 Census ACS 5-Year Estimates use a rolling 60-month sample for stable small-geography estimates; ZBP updated annually; FHFA HPI updated quarterly/annually.

Quick Facts

30,184

Population

21.7

Area (sq mi)

1,390

People / sq mi

New York

Time Zone

standard

ZIP Type

Neighborhood Scorecard
Get an A-F grade across income, safety, housing, rent, education, commute, and childcare for this ZIP code.
View Scorecard →

Who lives in ZIP 11731?

46.2

Median Age

49.1%

Male

50.9%

Female

9.9%

Foreign-Born

White 82.0%
African American 2.3%
Asian 4.1%
American Indian or Alaska Native 0.0%
Native Hawaiian or Pacific Islander 0.0%
Two or More Ethnicities 8.5%
Hispanic or Latino 9.1%

Hispanic or Latino is an ethnicity category from the Census Bureau and may overlap with other categories above.

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

How much do residents earn?

$161,132

Median Household Income

+74% vs state

$67,081

Per Capita Income

6.0%

Poverty Rate

3.9%

Unemployment Rate

35.9 min

Mean Commute Time

How ZIP 11731 ranks nationally

East Northport, NY household income vs. every US ZIP code

Median household income, the full national distribution, with this ZIP marked

$161,132 Top 3% higher than 97% of 30,318 US ZIPs

$0–$20,000: 118 US ZIPs (0%). Below this entry. $20,000–$40,000: 1,573 US ZIPs (5%). Below this entry. $40,000–$60,000: 7,092 US ZIPs (23%). Below this entry. $60,000–$80,000: 9,980 US ZIPs (33%). Below this entry. $80,000–$100,000: 5,778 US ZIPs (19%). Below this entry. $100,000–$120,000: 2,855 US ZIPs (9%). Below this entry. $120,000–$140,000: 1,362 US ZIPs (4%). Below this entry. $140,000–$160,000: 686 US ZIPs (2%). Below this entry. $160,000–$180,000: 364 US ZIPs (1%). This entry sits in this band. $180,000–$200,000: 186 US ZIPs (1%). Above this entry. $200,000–$220,000: 324 US ZIPs (1%). Above this entry. This ZIP $0 $200K+ every reporting US ZIP, bucketed by value

Each bar is a $20K-wide band; taller bars hold more US ZIPs. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source U.S. Census Bureau, ACS 5-Year Estimates · 2019–2023

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What is the education profile here?

High School Graduate or Higher 72.4%
Bachelor's Degree or Higher 53.2%

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What does housing look like?

11,125

Total Housing Units

10,811

Occupied Units

314

Vacant Units

2.75

Avg Household Size

Occupancy Type

Owner 90.4%
Renter 9.6%

$646,600

Median Home Value

+71% vs state

$2,412

Median Rent

1961

Median Year Built

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

How have home values changed over time?

FHFA House Price Index, annual appreciation data based on repeat sales and appraisals

+5.7%

YoY Change (2024)

264

HPI Index (2000 = 100)

+164%

Total Change Since 2000

Home values in ZIP 11731 have increased 5.7% over the past year (2024). Since 2000, this ZIP has seen +164% cumulative appreciation.

Year Annual Change HPI Index
2020 +3.6% 190
2021 +7.9% 205
2022 +10.6% 227
2023 +10.1% 250
2024 +5.7% 264

Source: Federal Housing Finance Agency (FHFA) House Price Index, All-Transactions, Five-Digit ZIP Codes (Developmental Index). Index base = 100 in year 2000. Data through 2024. ZIP codes with few transactions may show missing values.

What businesses operate in this ZIP?

Census Bureau data shows 871 business establishments in ZIP 11731, employing approximately 6,541 people with a combined annual payroll of $257,082,000.

871

Businesses

6,541

Employees

$257.1M

Annual Payroll

15

Industry Sectors

Industry Establishments % of Total
Construction 126 14.5%
Other services (except public administration) 115 13.2%
Retail trade 114 13.1%
Professional, scientific, and technical services 109 12.5%
Health care and social assistance 77 8.8%
Accommodation and food services 72 8.3%
Administrative and support and waste management and remediation services 71 8.2%
Finance and insurance 43 4.9%
Wholesale trade 36 4.1%
Real estate and rental and leasing 27 3.1%
Transportation and warehousing 19 2.2%
Educational services 19 2.2%
Arts, entertainment, and recreation 19 2.2%
Manufacturing 13 1.5%
Information 11 1.3%

Source: U.S. Census Bureau, ZIP Code Business Patterns (ZBP), 2023. Employment figures may include noise for disclosure avoidance.

Nearby ZIP Codes

Want a side-by-side? Compare 11731 vs 11740 →

ZIP 11731 vs its nearest neighbors, by population

Resident population of this ZIP and the closest reporting ZIP codes within ~10 miles.

residents

What this shows Among its immediate neighbors, ZIP 11731 ranks #4 by population - useful context the national average alone can't give.

Source U.S. Census Bureau · ACS 5-Year Estimates As of 2019–2023

ZIP 11731 vs its nearest neighbors, by median income

Median household income of this ZIP and the closest reporting ZIP codes within ~10 miles.

median income

What this shows By household income, ZIP 11731 ranks #6 of 9 neighboring ZIPs, local affluence varies block to block, not just metro to metro.

Source U.S. Census Bureau · ACS 5-Year Estimates As of 2019–2023
ZIP Code City Population Distance
11740 Greenlawn, NY 9,454 2.3 mi
11768 Northport, NY 21,902 3.3 mi
11725 Commack, NY 29,150 2.4 mi
11721 Centerport, NY 6,292 3.5 mi
11746 Huntington Station, NY 67,094 4.1 mi
11754 Kings Park, NY 18,958 4.0 mi
11729 Deer Park, NY 28,032 6.9 mi
11787 Smithtown, NY 35,772 5.6 mi
11743 Huntington, NY 42,230 5.9 mi
11703 North Babylon, NY 16,415 9.0 mi

More ZIP Codes in Suffolk County

11746 standard
Huntington Station, NY
Pop: 67,094
11706 standard
Bay Shore, NY
Pop: 62,543
11717 standard
Brentwood, NY
Pop: 60,745
11757 standard
Lindenhurst, NY
Pop: 45,700
11772 standard
Patchogue, NY
Pop: 44,837
11743 standard
Huntington, NY
Pop: 42,230

Related Areas

Suffolk County East Northport, NY New York

Frequently Asked Questions

What county is ZIP code 11731 in? ▼
ZIP code 11731 (East Northport) is located in Suffolk County, New York. Suffolk County contains multiple ZIP codes, see the full list at /counties/suffolk-ny.
What is the population of ZIP code 11731? ▼
ZIP code 11731 in East Northport, NY has a population of 30,184 according to the Census Bureau ACS 2023 estimates.
What is the median household income in ZIP 11731? ▼
The median household income in ZIP 11731 is $161,132, which is 111% above the national average of $76,288.
What is the average home value in ZIP 11731? ▼
The median home value in ZIP 11731 is $646,600, which is 132% above the national average of $278,155.
What is the demographic makeup of ZIP 11731? ▼
The largest racial group in ZIP 11731 is White at 82.0%. Hispanic or Latino residents make up 9.1% of the population.
How many businesses are in ZIP code 11731? ▼
ZIP code 11731 has 871 business establishments employing approximately 6,541 people, according to Census Bureau ZIP Code Business Patterns (ZBP) 2023 data.
What are the main industries in ZIP code 11731? ▼
The top industries by establishment count in ZIP 11731 are: Construction (126), Other services (except public administration) (115), Retail trade (114). There are 15 industry sectors represented in total.
How have home values changed in ZIP code 11731? ▼
According to the FHFA House Price Index, home values in ZIP 11731 increased by 5.7% in 2024. Since 2000, home values in this ZIP have appreciated by approximately 164%. This is a developmental index based on repeat sales and appraisal data from Fannie Mae and Freddie Mac.
What is the education level in ZIP code 11731? ▼
In ZIP code 11731, 72.4% of residents aged 25+ have a high school diploma or higher, and 53.2% hold a bachelor's degree or higher. These figures come from the Census Bureau ACS 5-Year Estimates (2023).
What is the average commute time in ZIP 11731? ▼
The mean commute time for workers in ZIP code 11731 is 35.9 minutes according to Census ACS data. The national average is roughly 26 minutes, so commuters here spend more time traveling to work than typical.
What percentage of residents own vs. rent in ZIP 11731? ▼
In ZIP code 11731, approximately 90.4% of occupied housing units are owner-occupied and 9.6% are renter-occupied, based on Census ACS 2023 data.
What is the poverty rate in ZIP code 11731? ▼
The poverty rate in ZIP code 11731 is 6.0% according to Census Bureau ACS 2023 estimates. This measures the percentage of the population living below the federal poverty threshold.

Read our methodology to see how this data is sourced, computed, and verified.