ZIP code 11784
Where is ZIP code 11784?
Selden, New York
Suffolk County · Standard ZIP code
ZIP code 11784 belongs to Selden, New York in Suffolk County. 11784 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 26,244 people live in the 11784 area, where the median household income is $104,369. The closest ZIP codes are 11720 (Centereach, 2 mi west), 11727 (Coram, 2.2 mi northeast) and 11738 (Farmingville, 2.3 mi south).
| ZIP code | 11784 |
|---|---|
| Type | Standard ZIP code for street addresses and PO Boxes |
| Status | Active |
| City | Selden |
| State | New York (NY) |
| County | Suffolk County |
| Time zone | Eastern Time · now |
| Area codes | 631, 934 |
| Coordinates | 40.8699, -73.0448 map |
| 3-digit prefix | 117 |
Population and income in 11784
| Population | 26,244 · higher than 86% of New York ZIP codes |
|---|---|
| People per square mile | 4,790 · higher than 83% of New York ZIP codes |
| Median age | 39 years · lower than 76% of New York ZIP codes |
| Men / women | 50% / 50% |
| Median household income | $104,369 · higher than 73% of New York ZIP codes |
| Income per person | $43,370 |
| Below the poverty line | 6.4% |
| Bachelor’s degree or higher | 29% of adults 25+ |
| Median home value | $460,300 · higher than 73% of New York ZIP codes |
| Median rent | $2,240 a month |
| Housing units | 9,032 |
| Households | 8,639 (3.02 people on average) |
| Owners / renters | 84% / 16% |
| Land area | 5.48 sq mi |
Source: U.S. Census Bureau, American Community Survey 5-year estimates (2020–2024) for ZIP Code Tabulation Area 11784. Census ZIP areas are close to, but not exactly the same as, USPS delivery areas.
ZIP codes near 11784
| ZIP code | City | Distance | Type |
|---|---|---|---|
| 11720 | Centereach, NY | 2 mi W | Standard |
| 11727 | Coram, NY | 2.2 mi NE | Standard |
| 11738 | Farmingville, NY | 2.3 mi S | Standard |
| 11776 | Port Jefferson Station, NY | 3 mi N | Standard |
| 00501 | Holtsville, NY | 3.8 mi S | Unique |
| 00544 | Holtsville, NY | 3.8 mi S | Unique |
| 11755 | Lake Grove, NY | 3.9 mi W | Standard |
| 11742 | Holtsville, NY | 4.1 mi S | Standard |
| 11766 | Mount Sinai, NY | 4.3 mi NE | Standard |
| 11763 | Medford, NY | 4.8 mi SE | Standard |
| 11953 | Middle Island, NY | 4.9 mi E | Standard |
| 11790 | Stony Brook, NY | 5 mi NW | Standard |
Straight-line distance between ZIP code center points. Find every ZIP code within 10 miles of 11784 or measure the distance to another ZIP code.
How to address mail to 11784
123 MAIN ST
SELDEN NY 11784
Put the city, the two-letter state code and the ZIP code on the last line. Avoid Old Westfield: USPS doesn’t recognize it as the city for this ZIP code. Adding the 4-digit ZIP+4 code (11784-XXXX) helps mail sort faster but isn’t required.
Questions
- What city is ZIP code 11784?
- 11784 is a Selden, New York ZIP code.
- What county is 11784 in?
- ZIP code 11784 is in Suffolk County, New York.
- What time zone is ZIP code 11784 in?
- 11784 is in the Eastern Time zone (America/New_York).
- What area code is 11784?
- Phone numbers in ZIP code 11784 use area codes 631 and 934.
- What is the population of ZIP code 11784?
- About 26,244 people live in ZIP code 11784, according to the Census Bureau’s American Community Survey (2020–2024).
- What is the median income in 11784?
- The median household income in 11784 is $104,369 a year, higher than 73% of New York ZIP codes.
- What ZIP codes are near 11784?
- The nearest ZIP codes to 11784 are 11720 (Centereach, 2 miles), 11727 (Coram, 2.2 miles), 11738 (Farmingville, 2.3 miles) and 11776 (Port Jefferson Station, 3 miles).