Holtsville, NY ZIP codes
Holtsville, New York has 3 ZIP codes, including 2 PO Box ZIPs. They are in Suffolk County.
- Population in these ZIPs
- 13,202
- Avg. median income
- $125,200population-weighted
- Typical home value
- $656,600population-weighted
- Metro area
- New York-Newark-Jersey City, NY-NJ
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Holtsville, NY ZIP codes list
| ZIP code | County | Population | Median income | Typical home value |
|---|---|---|---|---|
| 00501 PO Box | Suffolk County | — | — | — |
| 00544 PO Box | Suffolk County | — | — | — |
| 11742 | Suffolk County | 13,202 | $125,162 | $656,600 |
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 Holtsville
- Farmingville 2 mi
- Holbrook 2 mi
- Medford 3 mi
- Ronkonkoma 4 mi
- Selden 4 mi
- Blue Point 4 mi
- Centereach 4 mi
- Patchogue 5 mi
- Lake Grove 5 mi
- Bayport 5 mi
- Coram 5 mi
- Bohemia 5 mi
Frequently asked questions
What county is Holtsville, New York in?
Holtsville ZIP codes are in Suffolk County.
Which Holtsville ZIP codes are PO Boxes?
00501 and 00544 are PO Box or single-organization ZIP codes; they have no residential delivery area.