ZIP code 11731
Where is ZIP code 11731?
East Northport, New York
Suffolk County · Standard ZIP code
ZIP code 11731 belongs to East Northport, New York in Suffolk County. 11731 is a standard ZIP code, so it covers street addresses as well as PO Boxes. It is in the Eastern Time zone and uses area codes 631 and 934. About 29,999 people live in the 11731 area, where the median household income is $161,132. The closest ZIP codes are 11725 (Commack, 2.1 mi southeast), 11740 (Greenlawn, 2.6 mi west) and 11768 (Northport, 3.4 mi north).
| ZIP code | 11731 |
|---|---|
| Type | Standard ZIP code for street addresses and PO Boxes |
| Status | Active |
| City | East Northport |
| Also accepted | E Northport, Elwood |
| State | New York (NY) |
| County | Suffolk County |
| Time zone | Eastern Time · now |
| Area codes | 631, 934 |
| Coordinates | 40.857, -73.3146 map |
| 3-digit prefix | 117 |
Population and income in 11731
| Population | 29,999 · higher than 88% of New York ZIP codes |
|---|---|
| People per square mile | 3,605 · higher than 81% of New York ZIP codes |
| Median age | 46.2 years · higher than 64% of New York ZIP codes |
| Men / women | 49% / 51% |
| Median household income | $161,132 · higher than 94% of New York ZIP codes |
| Income per person | $67,081 |
| Below the poverty line | 6.0% |
| Bachelor’s degree or higher | 53% of adults 25+ |
| Median home value | $646,600 · higher than 83% of New York ZIP codes |
| Median rent | $2,412 a month |
| Housing units | 11,125 |
| Households | 10,811 (2.75 people on average) |
| Owners / renters | 90% / 9.6% |
| Land area | 8.32 sq mi |
Source: U.S. Census Bureau, American Community Survey 5-year estimates (2020–2024) for ZIP Code Tabulation Area 11731. Census ZIP areas are close to, but not exactly the same as, USPS delivery areas.
ZIP codes near 11731
| ZIP code | City | Distance | Type |
|---|---|---|---|
| 11725 | Commack, NY | 2.1 mi SE | Standard |
| 11740 | Greenlawn, NY | 2.6 mi W | Standard |
| 11768 | Northport, NY | 3.4 mi N | Standard |
| 11746 | Huntington Station, NY | 3.9 mi SW | Standard |
| 11721 | Centerport, NY | 4 mi NW | Standard |
| 11754 | Kings Park, NY | 4.2 mi NE | Standard |
| 11743 | Huntington, NY | 5 mi W | Standard |
| 11787 | Smithtown, NY | 5.3 mi E | Standard |
| 11717 | Brentwood, NY | 6.2 mi SE | Standard |
| 11747 | Melville, NY | 6.3 mi SW | Standard |
| 11788 | Hauppauge, NY | 6.6 mi E | Standard |
| 11724 | Cold Spring Harbor, NY | 6.7 mi W | Standard |
Straight-line distance between ZIP code center points. Find every ZIP code within 10 miles of 11731 or measure the distance to another ZIP code.
How to address mail to 11731
123 MAIN ST
EAST NORTHPORT NY 11731
Put the city, the two-letter state code and the ZIP code on the last line. USPS also accepts E NORTHPORT and ELWOOD as the city name for 11731. Adding the 4-digit ZIP+4 code (11731-XXXX) helps mail sort faster but isn’t required.
Questions
- What city is ZIP code 11731?
- 11731 is a East Northport, New York ZIP code. E Northport and Elwood are also accepted as the city name.
- What county is 11731 in?
- ZIP code 11731 is in Suffolk County, New York.
- What time zone is ZIP code 11731 in?
- 11731 is in the Eastern Time zone (America/New_York).
- What area code is 11731?
- Phone numbers in ZIP code 11731 use area codes 631 and 934.
- What is the population of ZIP code 11731?
- About 29,999 people live in ZIP code 11731, according to the Census Bureau’s American Community Survey (2020–2024).
- What is the median income in 11731?
- The median household income in 11731 is $161,132 a year, higher than 94% of New York ZIP codes.
- What ZIP codes are near 11731?
- The nearest ZIP codes to 11731 are 11725 (Commack, 2.1 miles), 11740 (Greenlawn, 2.6 miles), 11768 (Northport, 3.4 miles) and 11746 (Huntington Station, 3.9 miles).