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Zip Code 03240 — Grafton, NH

03240 is a ZIP Code associated with Grafton, NH, located within Grafton. The postal region supports an estimated population of 1,354 residents across Data Pending housing units, with a population density of 12.6 people per square mile.
WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (43.575990, -71.972210)

Data MetricLocal Statistic
Postal / Zip Code03240
Primary CityGrafton
State / ProvinceNH
CountyGrafton
Total Population1,354
Median Household IncomeData Pending
Total Housing UnitsData Pending
Population Density12.6 people/sq mi
TimezoneAmerica/New_York

How 03240 Compares

MetricZIP 03240Grafton CountyNH State Average
Population1,35492,2001,394,951
Median IncomeData PendingN/AN/A
Population Density12.6 /sq mi----

Nearby ZIP Codes

ZIP CodeCityDistancePopulationMedian Income
Zip 03284Springfield6.4 mi890N/A
Zip 03230Danbury6.5 mi1,451N/A
Zip 03741Canaan6.9 mi4,131N/A
Zip 03748Enfield7.5 mi4,563N/A
Zip 03287Wilmot9.0 mi1,487N/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 →