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ZIP Code Database - Facts & Stats

Data Last Updated: October 1, 2021

ZIP Codes for City of Dover, NH

Dover, NH Covers 3 ZIP Codes

ZIP CodeTypeCountyPopulationArea Code(s)
ZIP Code 03820StandardStrafford30,039603
ZIP Code 03821P.O. BoxStrafford0603
ZIP Code 03822UniqueStrafford0603

Timezone(s):Eastern (GMT -05:00)
Population:29,987 (More Details)
Male Population:14,691
Female Population:15,296
Median Age:37
ZIP Codes:3
Area Codes:1
Total Area:384 square miles (county)
Land Area:369 square miles (county)
Water Area:15 square miles (county)

Dover, NH Demographic Information *

Total population29,987
Male population14,691
Female population15,296
Median age (years)36.7
White Population27,155
Black Population521
Indian Population59
Asian Population1,371
Hawaiian Population14
Hispanic Population660
Median age (Male)35.2
Median age (Female)38.2
Total households12,827
Family households (families)7,059
Average household size2.27
Average family size2.89
Total housing units13,685
* Demographic data is based on 2010 Census.

Dover, NH Other Information

133 Cities within 30 miles of Dover, NH Products


  1. U.S. Postal Service [Last Updated: 10/1/2021],
  2. Internal Data Creation [Last Updated: 10/1/2021],
  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],