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 High-density area
- $161,132
- Median income Above-median income area
- $646,600
- Median home value Above-median home value
- 53.2%
- Bachelor's or higher Above-average bachelor's attainment
National ZIP placement
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.
FHFA HPI release change
What changed in the latest House Price Index year
- FHFA House Price Index values in ZIP 11731 (East Northport, NY) rose +5.7% from 2023 to 2024. The all-transactions index moved from 249.8 in 2023 to 263.9 in 2024 (2000 = 100).
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 average New York ZIP), while per-capita income is $67,081. Both reported hardship measures are comparatively low in absolute terms: poverty is 6.0% and unemployment is 3.9%. Housing is both higher-cost and owner-heavy: median home value is $646,600 (71% above the average New York ZIP), while 90.4% of occupied homes are owner-occupied and median rent is $2,412.
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. The page also surfaces 10 ZIP codes within roughly 10 miles and 6 more in Suffolk County, so 11731 can be compared with both its immediate and county-level context.
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.
- Construction
Construction
126 establishments
- Other services (except public administration)
Other services (except public administration)
115 establishments
- Retail trade
Retail trade
114 establishments
- Professional, scientific, and technical services
Professional, scientific, and technical services
109 establishments
- Health care and social assistance
Health care and social assistance
77 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, 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
Who lives in ZIP 11731?
46.2
Median Age
49.1%
Male
50.9%
Female
9.9%
Foreign-Born
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 ZIP avg
$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
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?
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What does housing look like?
Housing stock: occupied vs vacant
11,125housing units
11,125
Total Housing Units
10,811
Occupied Units
314
Vacant Units
2.75
Avg Household Size
Occupancy Type
$646,600
Median Home Value
+71% vs state ZIP avg
$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.
- 11746
Huntington Station (11746)
67,094 residents
- 11743
Huntington (11743)
42,230 residents
- 11787
Smithtown (11787)
35,772 residents
- 11731
East Northport (11731)
30,184 residents
- 11725
Commack (11725)
29,150 residents
- 11729
Deer Park (11729)
28,032 residents
- 11768 21,902
Northport (11768)
21,902 residents
- 11754 18,958
Kings Park (11754)
18,958 residents
- 11703 16,415
North Babylon (11703)
16,415 residents
What this shows Among its immediate neighbors, ZIP 11731 ranks #4 by population - useful context the national average alone can't give.
ZIP 11731 vs its nearest neighbors, by median income
Median household income of this ZIP and the closest reporting ZIP codes within ~10 miles.
- 11721
Centerport (11721)
$197,179 median income
- 11743
Huntington (11743)
$183,187 median income
- 11768
Northport (11768)
$172,570 median income
- 11725
Commack (11725)
$168,281 median income
- 11746
Huntington Station (11746)
$164,589 median income
- 11731
East Northport (11731)
$161,132 median income
- 11740
Greenlawn (11740)
$152,386 median income
- 11787
Smithtown (11787)
$143,101 median income
- 11703
North Babylon (11703)
$137,158 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.
| 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 |
Nationwide ZIPs with similar ACS profiles
Two Census-derived peer sets for ZIP 11731, both outside NY so the neighborhoods are not geographic containment (Nearby and same-county blocks stay local).
Similar population
Nearest cross-state ZIPs by resident population (30,184 here; floor ≥1,000).
Similar median household income
Nearest cross-state ZIPs by ACS median household income.
More ZIP Codes in Suffolk County
Related Areas
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.
Related
Take this with you
What to do with ZIP 11731's numbers, next.
- See how ZIP 11731 compares to a neighboring ZIP code on the same Census fields Compare this ZIP
- Check where East Northport, NY ranks among every U.S. ZIP code on income, education, or homeownership View national rankings
- Save this ZIP to your shortlist to track alongside others you're considering View your shortlist
ZIP Code Tabulation Areas (ZCTAs) are Census Bureau approximations of USPS ZIP codes; figures describe the ZCTA area, not any single address within it.