Zip Code 03865 — Plaistow, NH

03865 is a ZIP Code associated with Plaistow, NH, located within Rockingham. The postal region supports an estimated population of 7,861 residents across Data Pending housing units, with a population density of 286.6 people per square mile.
WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (42.840320, -71.096030)

Data MetricLocal Statistic
Postal / Zip Code03865
Primary CityPlaistow
State / ProvinceNH
CountyRockingham
Total Population7,861
Median Household IncomeData Pending
Total Housing UnitsData Pending
Population Density286.6 people/sq mi
TimezoneAmerica/New_York

How 03865 Compares

MetricZIP 03865Rockingham CountyNH State Average
Population7,861319,0821,394,951
Median IncomeData PendingN/AN/A
Population Density286.6 /sq mi----

Nearby ZIP Codes

ZIP CodeCityDistancePopulationMedian Income
Zip 03811Atkinson3.3 mi7,267N/A
Zip 03858Newton3.3 mi4,836N/A
Zip 03826East Hampstead3.7 mi2,654N/A
Zip 03841Hampstead5.1 mi6,508N/A
Zip 03848Kingston5.4 mi6,275N/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 →