Syosset, NY ZIP codes
Syosset, New York has 2 ZIP codes, including 1 PO Box ZIP. They are in Nassau County.
- Population in these ZIPs
- 25,520
- Avg. median income
- $203,000population-weighted
- Typical home value
- $1,224,500population-weighted
- Metro area
- New York-Newark-Jersey City, NY-NJ
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Syosset, NY ZIP codes list
| ZIP code | County | Population | Median income | Typical home value |
|---|---|---|---|---|
| 11773 PO Box | Nassau County | — | — | — |
| 11791 | Nassau County | 25,520 | $202,962 | $1,224,500 |
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 Syosset
- Woodbury 2 mi
- East Norwich 2 mi
- Jericho 3 mi
- Oyster Bay 3 mi
- Plainview 3 mi
- Cold Spring Harbor 4 mi
- Glen Head 5 mi
- Mill Neck 5 mi
- Hicksville 5 mi
- Melville 5 mi
- Old Bethpage 5 mi
- Huntington 6 mi
Frequently asked questions
What county is Syosset, New York in?
Syosset ZIP codes are in Nassau County.
Which Syosset ZIP codes are PO Boxes?
11773 is a PO Box or single-organization ZIP code; it has no residential delivery area.