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: 005010054411742
Single source
Coordinates: 40.8154, -73.0451 View on OpenStreetMap

ZIP codes (3)

Postal code	Place name	Verification
00501	Holtsville	Single source
00544	Holtsville	Single source
11742	Holtsville	Single source

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. Last generated : 2026-08-21. Report an error.