Holtsville, NY

ZIP code 00501 is assigned to the Internal Revenue Service in Holtsville, New York. This unique ZIP code is utilized solely for IRS mail distribution and does not represent a specific geographical area. The most significant landmark in this ZIP code is the IRS building, where tax-related correspondence is processed and managed.

ZIP code 00501

Holtsville, NY

United States

US > NY > Suffolk County > 00501

Daylight Saving: Yes
Time Zone: Eastern
Area Code: 631
This ZIP code is type "Unique" (applies to a single address, usually a single large building or complex).

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