About ZIP Code 03801
ZIP code 03801 is assigned to Portsmouth, Rockingham County, New Hampshire, United States. It falls in the Eastern Time (ET) zone. The estimated population of this ZIP code area is 23,484 with a density of 381.5 people per square mile.
Location Details
ZIP Code03801
CityPortsmouth
CountyRockingham County
StateNew Hampshire
CountryUnited States
TimezoneEastern Time (ET)
Timezone IDAmerica/New_York
Latitude43.0729
Longitude-70.8052
ZIP TypeStandard ZIP
Post Office
Address345 HERITAGE AVE UNIT 100
CityPORTSMOUTH
StateNH
Nearby ZIP Codes in New Hampshire
Frequently Asked Questions
What city is ZIP code 03801 in?
ZIP code 03801 is in Portsmouth, Rockingham County, New Hampshire, United States.
What county is ZIP code 03801 in?
ZIP code 03801 is in Rockingham County, New Hampshire.
What timezone is ZIP code 03801 in?
ZIP code 03801 is in the Eastern Time (ET) zone (America/New_York).
What is the population of ZIP code 03801?
The estimated population of ZIP code 03801 is 23,484 people with a density of 381.5 people per square mile.
What state is ZIP code 03801 in?
ZIP code 03801 is in New Hampshire (NH), United States.
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Data Source: United States Postal Service (USPS) & US Census Bureau (ZCTA data) · Public domain government data. For official ZIP code information visit tools.usps.com. Data is periodically updated but may not reflect the most recent changes.