Flanders, NY ZIP Codes
One ZIP code serves Flanders, New York: 11901. Together they are home to 33,091 residents in 12,085 households. That is more than the 6,609 people counted inside Flanders Census-designated place, because these ZIP codes reach past its boundary.
Flanders Census-designated place
| Measure | Census figure |
|---|---|
| Residents | 6,609 |
| Households | 2,221 |
| Median household income | $88,393 |
| Median home value | $419,600 |
| Median age | 36.4 |
| Median rent | $2,311 |
All 1 ZIP codes together
| Measure | Value |
|---|---|
| Residents (sum of ZIP codes) | 33,091 |
| Households (sum of ZIP codes) | 12,085 |
| Median household income, range across ZIP codes | $85,061 (11901) to $85,061 (11901) |
| Household-weighted average of ZIP medians (an approximation, not a true median) | $85,061 |
| Homeowners | 70.2% |
| Households with kids under 18 | 23.2% |
| Moved in the past year | 9.8% |
| Carrier routes in EDDM2GO's route library | 21 routes, 11,100 homes (1 of 1 ZIP codes) |
Every ZIP code in Flanders
| ZIP | Mailing city | Residents | Households | Median income | Home value | Homeowners | With kids | New movers | Carrier routes | Mailboxes | Why listed |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 11901 | Riverhead | 33,091 | 12,085 | $85,061 | $453,800 | 70.2% | 23.2% | 9.8% | 21 | 12,312 | 20% of its land |
A ZIP code is listed for Flanders when at least 10% of its land lies inside the Flanders Census-designated place, when it holds at least 10% of the place's land, or when its USPS mailing city is Flanders. The table shows which applies. Totals add up whole ZIP codes, so they include any parts outside Flanders.
Counties
- Suffolk County — 108 ZIP codes
Nearby cities sharing these ZIP codes
- Riverhead — 1 ZIP code
Price a mailing to Flanders ZIP codes
EDDM guides
Pick carrier routes on the EDDM route map
Frequently asked questions
- What ZIP codes are in Flanders, NY?
- 11901. A ZIP code is listed for Flanders when at least 10% of its land lies inside the Flanders Census-designated place, when it holds at least 10% of the place's land, or when its USPS mailing city is Flanders.
- What is the population of Flanders, NY?
- The Census Bureau counts 6,609 residents inside Flanders Census-designated place (ACS 2020–2024). The 1 ZIP code that serve Flanders hold 33,091 residents in all.
- What is the median household income in Flanders, NY?
- $88,393 inside Flanders Census-designated place, per the Census Bureau. Across its ZIP codes the medians run from $85,061 to $85,061.
- How many carrier routes and mailboxes are in Flanders, NY?
- For the 1 of 1 ZIP codes in EDDM2GO's stored route library: 21 carrier routes reaching 11,100 residential and 1,212 business mailboxes.
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.