Postal reference / United States
00501Holtsville, New York
ZIP code 00501 is a United States postal code for Holtsville, New York. Its county association is Suffolk County. The map reference point is at 40.8154, -73.0451.
- State / territory
- New York
- Recorded place name
- Holtsville
- County association
- Suffolk
- Estimated coordinate
- 40.8154, -73.0451
View on OpenStreetMap - ZIP prefix
- 005 · 2 ZIP codes share it
- Data source
- GeoNames postal reference, snapshot September 26, 2026
GeoNames reference data. County associations may not include every intersecting county, place names are postal names rather than legal boundaries, and coordinates are approximate. This is not address validation.
The lowest ZIP code in the dataset
00501 is the lowest-numbered ZIP code in our reference dataset, recorded for Holtsville, New York. It is not a typical residential ZIP code; codes starting with 005 are few and specialised. The lowest ordinary ranges in New England start at 010. See What is a ZIP code? for how the numbering works.
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New York directoryOther ZIP codes in Holtsville, NY
Holtsville has 3 ZIP codes in the reference dataset.
Nearby ZIP code reference points
| ZIP code | Place | State | County association | Miles |
|---|---|---|---|---|
| 00544 | Holtsville | NY | Suffolk | 0.0 |
| 11742 | Holtsville | NY | Suffolk | 0.4 |
| 11738 | Farmingville | NY | Suffolk | 1.5 |
| 11741 | Holbrook | NY | Suffolk | 1.9 |
| 11763 | Medford | NY | Suffolk | 3.1 |
| 11784 | Selden | NY | Suffolk | 3.8 |
| 11720 | Centereach | NY | Suffolk | 4.3 |
| 11779 | Ronkonkoma | NY | Suffolk | 4.5 |
Straight-line distance between reference points. Nearby points do not prove that ZIP areas touch.
Verify a mailing address
For mailing, confirm the complete street or PO Box address with USPS. A place record does not confirm delivery eligibility or the ZIP+4 extension.
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