All of the post offices in the city of Central Islip, NY

This page details the 2 post offices in Central Islip, NY helping you identify the ones that open the earliest or close the latest in your vicinity. The hours mentioned represent the retail hours of operation, a period when staff are present to assist with mailing services and other customer needs. Additionally, many post offices offer extended lobby hours, during which you can access your PO box, leave packages for shipment, or purchase postage via the self-service Automated Postal Center (APC) machines. The listings are organized first by city in alphabetical order, followed by the post office name, and include Street View images of the post offices where possible. Please contact us if you find an error, so that we can correct it.

Street View Image of Central Islip Post Office in Central Islip, NY

Central Islip Post Office is currently open

For parking and list of services available, visit the official USPS page for post this post office location.

Post office address
110 E Suffolk Ave Central Islip, NY 11722

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Open hours
Day Open Close
Monday 9:00 AM 5:00 PM
Tuesday 9:00 AM 5:00 PM
Wednesday 9:00 AM 5:00 PM
Thursday 9:00 AM 5:00 PM
Friday 9:00 AM 5:00 PM
Saturday 9:00 AM 1:00 PM
Sunday Closed
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Street View Image of Federal Court House Post Office in Central Islip, NY

Federal Court House Post Office is currently closed

For parking and list of services available, visit the official USPS page for post this post office location.

Post office address
101 Federal Plz Central Islip, NY 11722

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Open hours
Day Open Close
Monday 9:30 AM 2:30 PM
Tuesday 9:30 AM 2:30 PM
Wednesday 9:30 AM 2:30 PM
Thursday 9:30 AM 2:30 PM
Friday 9:30 AM 2:30 PM
Saturday Closed
Sunday Closed
  • Stamps.com logo
    Buy postage online
    Discounted USPS and UPS rates of up to 84%.
    Promo code
    STAMPS100
    $100 value