Smithtown, NY ZIP Codes
One ZIP code serves Smithtown, New York: 11787. Together they are home to 34,499 residents in 11,857 households. That is more than the 24,375 people counted inside Smithtown Census-designated place, because these ZIP codes reach past its boundary.
Smithtown Census-designated place
| Measure | Census figure |
|---|---|
| Residents | 24,375 |
| Households | 8,033 |
| Median household income | $150,664 |
| Median home value | $704,700 |
| Median age | 47 |
| Median rent | $2,020 |
All 1 ZIP codes together
| Measure | Value |
|---|---|
| Residents (sum of ZIP codes) | 34,499 |
| Households (sum of ZIP codes) | 11,857 |
| Median household income, range across ZIP codes | $143,101 (11787) to $143,101 (11787) |
| Household-weighted average of ZIP medians (an approximation, not a true median) | $143,101 |
| Homeowners | 87.3% |
| Households with kids under 18 | 29.0% |
| Moved in the past year | 4.6% |
| Carrier routes in EDDM2GO's route library | 35 routes, 12,152 homes (1 of 1 ZIP codes) |
Every ZIP code in Smithtown
| ZIP | Mailing city | Residents | Households | Median income | Home value | Homeowners | With kids | New movers | Carrier routes | Mailboxes | Why listed |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 11787 | Smithtown | 34,499 | 11,857 | $143,101 | $679,800 | 87.3% | 29.0% | 4.6% | 35 | 13,180 | 72% of its land; mailing city |
A ZIP code is listed for Smithtown when at least 10% of its land lies inside the Smithtown Census-designated place, when it holds at least 10% of the place's land, or when its USPS mailing city is Smithtown. The table shows which applies. Totals add up whole ZIP codes, so they include any parts outside Smithtown.
Counties
- Suffolk County — 108 ZIP codes
Nearby cities sharing these ZIP codes
Price a mailing to Smithtown ZIP codes
EDDM guides
Pick carrier routes on the EDDM route map
Frequently asked questions
- What ZIP codes are in Smithtown, NY?
- 11787. A ZIP code is listed for Smithtown when at least 10% of its land lies inside the Smithtown Census-designated place, when it holds at least 10% of the place's land, or when its USPS mailing city is Smithtown.
- What is the population of Smithtown, NY?
- The Census Bureau counts 24,375 residents inside Smithtown Census-designated place (ACS 2020–2024). The 1 ZIP code that serve Smithtown hold 34,499 residents in all.
- What is the median household income in Smithtown, NY?
- $150,664 inside Smithtown Census-designated place, per the Census Bureau. Across its ZIP codes the medians run from $143,101 to $143,101.
- How many carrier routes and mailboxes are in Smithtown, NY?
- For the 1 of 1 ZIP codes in EDDM2GO's stored route library: 35 carrier routes reaching 12,152 residential and 1,028 business mailboxes.
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.