Portsmouth zip code

Zip code in Portsmouth, NH

The location Portsmouth belongs to Rockingham County, state of New Hampshire. Portsmouth has 5 zip codes which you can see in the following table.

Portsmouth is the official name of the location so if you want to use the US Postal Service you must use that name. You can also use any of the following names: Newington.

Zip code	Type	Population
03801	STANDARD	20,250
03802	PO BOX	1,102
03803	UNIQUE	0
03804	PO BOX	93
03805	STANDARD	0

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