Smithtown, NY ZIP code
The ZIP code for Smithtown, New York is 11787. It is in Suffolk County.
- Population in these ZIPs
- 34,499
- Avg. median income
- $143,100population-weighted
- Typical home value
- $819,900population-weighted
- Metro area
- New York-Newark-Jersey City, NY-NJ
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Smithtown, NY ZIP code list
| ZIP code | Population | Median income | Typical home value |
|---|---|---|---|
| 11787 | 34,499 | $143,101 | $819,900 |
Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology
Cities near Smithtown
- Hauppauge 2 mi
- Kings Park 3 mi
- Nesconset 3 mi
- Commack 4 mi
- Islandia 4 mi
- Saint James 5 mi
- Central Islip 5 mi
- Lake Grove 5 mi
- East Northport 6 mi
- Ronkonkoma 6 mi
- Stony Brook 6 mi
- Bohemia 7 mi
Frequently asked questions
What is the ZIP code for Smithtown, NY?
The ZIP code for Smithtown, NY is 11787.
What county is Smithtown, New York in?
Smithtown ZIP codes are in Suffolk County.