Portsmouth Naval Shipyard Post Office

does not have retail counter services

This USPS post office is located in Portsmouth, NH where the date and time is currently: 3/28/2026, 3:16:16 PM

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Address

15 Mcdonough St
Portsmouth, NH 03804-4000

Latitude: 43.077922, Longitude: -70.7559699

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Services at Portsmouth Naval Shipyard Post Office

Parking lot available. Here's what you can do at this location:

PO Box & Mail

Accountable Mail Pickup
Pick up items that require a signature: Certified Mail, Registered Mail, Collect on Delivery, insured packages, and Signature Confirmation items.
Hold Mail Pickup
Pick up mail that USPS has been holding while you were away. You can request a hold for up to 30 days through usps.com or at the counter.
PO Box (Online Management)
Rent a PO Box and manage billing online. A PO Box gives you a secure, private mailing address — useful if you run a business or want to separate personal and business mail.

Other Services

Customer Service Referrals
Staff can help answer questions or direct you to the right resource for issues with mail delivery, address changes, or other USPS services.