Zip Code Database List
Account Login
Find ZIP+4 of Address

Find the ZIP Code, County, and +4 of any U.S. Address

FREE ZIP Code Finder

Find info on any U.S. ZIP Code

Other FREE Lookups

Lookup ZIP Code of any City, State, County or Area Code

FREE Radius Search

Find all ZIP Codes

FREE Distance Calc

Calculate the distance between two U.S. or Canadian ZIP codes.

ZIP Code Database - Facts & Stats

Data Last Updated: June 1, 2022

ZIP Codes for City of Portsmouth, NH

Portsmouth, NH Covers 4 ZIP Codes

ZIP CodeTypeCountyPopulationArea Code(s)
ZIP Code 03801StandardRockingham21,532603
ZIP Code 03802P.O. BoxRockingham0603
ZIP Code 03803UniqueRockingham0603
ZIP Code 03804P.O. BoxRockingham0603

Timezone(s):Eastern (GMT -05:00)
Population:20,779 (More Details)
Male Population:10,080
Female Population:10,699
Median Age:40
ZIP Codes:4
Area Codes:1
Total Area:795 square miles (county)
Land Area:695 square miles (county)
Water Area:100 square miles (county)

Portsmouth, NH Demographic Information *

Total population20,779
Male population10,080
Female population10,699
Median age (years)40.3
White Population19,017
Black Population359
Indian Population46
Asian Population719
Hawaiian Population6
Hispanic Population573
Median age (Male)38.8
Median age (Female)42.1
Total households10,014
Family households (families)4,736
Average household size2.03
Average family size2.75
Total housing units10,625
* Demographic data is based on 2010 Census. Products


  1. U.S. Postal Service [Last Updated: 6/1/2022],
  2. Internal Data Creation [Last Updated: 6/1/2022],
  3. U.S. Geological Survey [Updated as needed],
  4. U.S. Census [Updated Yearly],
  5. U.S. Census 2010 [Decennial] [Last Updated: 1/1/2010],