Seaford, NY ZIP Codes
One ZIP code serves Seaford, New York: 11783. Together they are home to 21,127 residents in 7,084 households. That is more than the 15,549 people counted inside Seaford Census-designated place, because these ZIP codes reach past its boundary.
Seaford Census-designated place
| Measure | Census figure |
|---|---|
| Residents | 15,549 |
| Households | 5,227 |
| Median household income | $172,557 |
| Median home value | $658,300 |
| Median age | 40.3 |
| Median rent | $2,489 |
All 1 ZIP codes together
| Measure | Value |
|---|---|
| Residents (sum of ZIP codes) | 21,127 |
| Households (sum of ZIP codes) | 7,084 |
| Median household income, range across ZIP codes | $176,993 (11783) to $176,993 (11783) |
| Household-weighted average of ZIP medians (an approximation, not a true median) | $176,993 |
| Homeowners | 93.6% |
| Households with kids under 18 | 36.2% |
| Moved in the past year | 3.5% |
| Carrier routes in EDDM2GO's route library | 18 routes, 7,240 homes (1 of 1 ZIP codes) |
Every ZIP code in Seaford
| ZIP | Mailing city | Residents | Households | Median income | Home value | Homeowners | With kids | New movers | Carrier routes | Mailboxes | Why listed |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 11783 | Seaford | 21,127 | 7,084 | $176,993 | $654,300 | 93.6% | 36.2% | 3.5% | 18 | 7,565 | 72% of its land; mailing city |
A ZIP code is listed for Seaford when at least 10% of its land lies inside the Seaford Census-designated place, when it holds at least 10% of the place's land, or when its USPS mailing city is Seaford. The table shows which applies. Totals add up whole ZIP codes, so they include any parts outside Seaford.
Counties
- Nassau County — 70 ZIP codes
Nearby cities sharing these ZIP codes
- Levittown — 3 ZIP codes
- North Wantagh — 2 ZIP codes
Price a mailing to Seaford ZIP codes
EDDM guides
Pick carrier routes on the EDDM route map
Frequently asked questions
- What ZIP codes are in Seaford, NY?
- 11783. A ZIP code is listed for Seaford when at least 10% of its land lies inside the Seaford Census-designated place, when it holds at least 10% of the place's land, or when its USPS mailing city is Seaford.
- What is the population of Seaford, NY?
- The Census Bureau counts 15,549 residents inside Seaford Census-designated place (ACS 2020–2024). The 1 ZIP code that serve Seaford hold 21,127 residents in all.
- What is the median household income in Seaford, NY?
- $172,557 inside Seaford Census-designated place, per the Census Bureau. Across its ZIP codes the medians run from $176,993 to $176,993.
- How many carrier routes and mailboxes are in Seaford, NY?
- For the 1 of 1 ZIP codes in EDDM2GO's stored route library: 18 carrier routes reaching 7,240 residential and 325 business mailboxes.
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.