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Zip Code 03766 — Lebanon, NH

03766 is a ZIP Code associated with Lebanon, NH, located within Grafton. The postal region supports an estimated population of 11,195 residents across Data Pending housing units, with a population density of 135.2 people per square mile.
WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (43.634910, -72.238190)

Data MetricLocal Statistic
Postal / Zip Code03766
Primary CityLebanon
State / ProvinceNH
CountyGrafton
Total Population11,195
Median Household IncomeData Pending
Total Housing UnitsData Pending
Population Density135.2 people/sq mi
TimezoneAmerica/New_York

How 03766 Compares

MetricZIP 03766Grafton CountyNH State Average
Population11,19592,2001,394,951
Median IncomeData PendingN/AN/A
Population Density135.2 /sq mi----

Nearby ZIP Codes

ZIP CodeCityDistancePopulationMedian Income
Zip 03784West Lebanon3.4 mi3,804N/A
Zip 03750Etna5.5 mi1,116N/A
Zip 03781Plainfield6.1 mi1,918N/A
Zip 03748Enfield6.5 mi4,563N/A
Zip 03755Hanover6.5 mi10,569N/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 →