City · New York · United States
Holtsville, NY — ZIP codes
3 ZIP codes · Suffolk County
- City
- Holtsville
- County
- Suffolk
- State
- New York
- Country
- United States
- Postal codes
- 005010054411742Single source
- Coordinates
- 40.8154, -73.0451 View on OpenStreetMap
- Area codes
- 516, 631, 934 (from the nearest rate centre)
ZIP codes (3)
Sources and verification
US ZIP codes have five digits. They are postal routing areas, not administrative boundaries: a ZIP can span more than one city or county, and the city shown is the primary USPS name for that code.
GeoNames · NOAA NCEI · usda-phzm · U.S. Census Bureau (ACS) · U.S. Census Bureau. Last generated : 2026-08-21. Report an error.