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Arthur J Athanasiou (Postmaster)
arthur.j.athanasiou@usps.gov
80 Daniel St Ste 998
Portsmouth, NH 03801
Portsmouth, NH 03801
The Portsmouth Post Office is located in the state of New Hampshire within Rockingham County. This location serves 21,532 Portsmouth residents with a median income of $65,972. It's estimated that approximately 34,367 packages pass through this post office each year.