Holtsville, NYZIP code 00501 is a unique code assigned to the Internal Revenue Service center located in Holtsville, New York. This ZIP code is specifically reserved for this federal building and is not used for general mail delivery. The IRS center is the primary landmark in this area, and it serves as a hub for tax processing and administration for residents in the region. |
ZIP code 00501Holtsville, NYUnited StatesUS > NY > Suffolk County > 00501 Daylight Saving:
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