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Zip Code 03771 — Monroe, NH

03771 is a ZIP Code associated with Monroe, NH, located within Grafton. The postal region supports an estimated population of 786 residents across Data Pending housing units, with a population density of 13.6 people per square mile.

WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (44.284430, -72.009800)

Data Metric	Local Statistic
Postal / Zip Code	03771
Primary City	Monroe
State / Province	NH
County	Grafton
Total Population	786
Median Household Income	Data Pending
Total Housing Units	Data Pending
Population Density	13.6 people/sq mi
Timezone	America/New_York

How 03771 Compares

Metric	ZIP 03771	Grafton County	NH State Average
Population	786	92,200	1,394,951
Median Income	Data Pending	N/A	N/A
Population Density	13.6 /sq mi	--	--

Nearby ZIP Codes

ZIP Code	City	Distance	Population	Median Income
Zip 03585	Lisbon	6.9 mi	2,456	N/A
Zip 03740	Bath	7.3 mi	1,097	N/A
Zip 03561	Littleton	10.4 mi	6,040	N/A
Zip 03586	Sugar Hill	11.5 mi	658	N/A
Zip 03774	North Haverhill	13.4 mi	1,420	N/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 →