Home > NH > Rockingham County > Portsmouth > Zip 03801

Zip Code 03801 — Portsmouth, NH

03801 is a ZIP Code associated with Portsmouth, NH, located within Rockingham. The postal region supports an estimated population of 23,484 residents across Data Pending housing units, with a population density of 381.5 people per square mile.
WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (43.072930, -70.805200)

Data MetricLocal Statistic
Postal / Zip Code03801
Primary CityPortsmouth
State / ProvinceNH
CountyRockingham
Total Population23,484
Median Household IncomeData Pending
Total Housing UnitsData Pending
Population Density381.5 people/sq mi
TimezoneAmerica/New_York

How 03801 Compares

MetricZIP 03801Rockingham CountyNH State Average
Population23,484319,0821,394,951
Median IncomeData PendingN/AN/A
Population Density381.5 /sq mi----

Nearby ZIP Codes

ZIP CodeCityDistancePopulationMedian Income
Zip 03840Greenland3.2 mi4,106N/A
Zip 03854New Castle4.3 mi827N/A
Zip 03870Rye4.6 mi5,188N/A
Zip 03885Stratham6.2 mi7,754N/A
Zip 03824Durham6.5 mi15,080N/A

Data Sources & Methodology: Geographic coordinates and ZIP Code assignments are derived from underlying geographic and postal datasets. Note that ZIP Codes are USPS postal delivery areas, while Census ZCTAs are statistical approximation areas. Read full methodology →