Find the last 4 digits (ZIP+4) for an address in 03801

ZIP 03801, Portsmouth, NH is filled in. Just type the street address.

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ZIP Code 03801 – Portsmouth, NH

Portsmouth, New Hampshire · Rockingham County · Eastern time

ZIP code03801
CityPortsmouth
StateNew Hampshire
CountyRockingham County
Area code603
Population23,484
Time zoneEastern · local time
ZIP typeStandard (has a Census ZCTA area)
Land area23.77 sq mi
Center (lat, long)43.0748, -70.8054

Map

Nearby ZIP codes

03802 Portsmouth · 2.2 mi03803 Portsmouth · 2.2 mi03804 Portsmouth · 2.2 mi03840 Greenland · 3.2 mi03904 Kittery · 4.3 mi03870 Rye · 4.4 mi03854 New Castle · 4.5 mi03903 Eliot · 5.2 mi

About ZIP 03801

ZIP code 03801 is assigned to Portsmouth, New Hampshire. It lies in Rockingham County. Its Census area covers about 23.77 square miles of land. The closest neighboring ZIP is 03802 (Portsmouth), about 2.2 miles away.

Every address in 03801 also has a 4-digit add-on code (ZIP+4) that points to a smaller delivery area. Use the box above to find it.

Sources: US Census Bureau (ZCTA, county relationship files), GeoNames (CC BY 4.0), NANPA via NumberResearch.org (CC BY 4.0). Map © OpenStreetMap contributors. ZIP areas are approximate. Population: U.S. Census Bureau, ACS 5-year estimates, 2024 (ZCTA). Data sources