Home > NH > Merrimack County > Henniker > Zip 03242

Zip Code 03242 — Henniker, NH

03242 is a ZIP Code associated with Henniker, NH, located within Merrimack. The postal region supports an estimated population of 6,197 residents across Data Pending housing units, with a population density of 54.2 people per square mile.
WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (43.173650, -71.822400)

Data MetricLocal Statistic
Postal / Zip Code03242
Primary CityHenniker
State / ProvinceNH
CountyMerrimack
Total Population6,197
Median Household IncomeData Pending
Total Housing UnitsData Pending
Population Density54.2 people/sq mi
TimezoneAmerica/New_York

How 03242 Compares

MetricZIP 03242Merrimack CountyNH State Average
Population6,197160,0411,394,951
Median IncomeData PendingN/AN/A
Population Density54.2 /sq mi----

Nearby ZIP Codes

ZIP CodeCityDistancePopulationMedian Income
Zip 03244Hillsborough6.2 mi8,156N/A
Zip 03229Contoocook6.5 mi6,046N/A
Zip 03281Weare8.2 mi9,170N/A
Zip 03278Warner8.3 mi3,079N/A
Zip 03221Bradford9.0 mi2,200N/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 →