Home > NH > Strafford County > Dover > Zip 03820

Zip Code 03820 — Dover, NH

03820 is a ZIP Code associated with Dover, NH, located within Strafford. The postal region supports an estimated population of 33,440 residents across Data Pending housing units, with a population density of 473.2 people per square mile.
WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (43.189330, -70.884280)

Data MetricLocal Statistic
Postal / Zip Code03820
Primary CityDover
State / ProvinceNH
CountyStrafford
Total Population33,440
Median Household IncomeData Pending
Total Housing UnitsData Pending
Population Density473.2 people/sq mi
TimezoneAmerica/New_York

How 03820 Compares

MetricZIP 03820Strafford CountyNH State Average
Population33,440132,7281,394,951
Median IncomeData PendingN/AN/A
Population Density473.2 /sq mi----

Nearby ZIP Codes

ZIP CodeCityDistancePopulationMedian Income
Zip 03823Madbury3.0 mi2,203N/A
Zip 03869Rollinsford3.1 mi2,456N/A
Zip 03878Somersworth4.4 mi12,205N/A
Zip 03824Durham5.3 mi15,080N/A
Zip 03839Rochester7.1 mi4,279N/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 →