Zip Code 03771 — Monroe, NH

ZIP Code 03771 is associated with Monroe, NH, in Grafton County. The listed population estimate is 786; estimated density is 13.6 people per square mile. Among records with population estimates, it ranks #31 of 36 in Grafton County and #213 of 245 in NH.
Page generated: 2026-10-08. This is not the source data release date.

📍 View location on OpenStreetMap (44.284430, -72.009800)

Data MetricLocal Statistic
Postal / Zip Code03771
Primary CityMonroe
State / ProvinceNH
CountyGrafton
Total Population786
Population Density13.6 people/sq mi
TimezoneAmerica/New_York

How 03771 Compares

MetricZIP 03771Grafton County recordsNH records
Population estimate78692,200 (sum)1,394,951 (sum)
Population Density13.6 /sq mi----
County population rank#31 of 36----
State population rank#213 of 245----

Regional sums combine the population estimates in the listed ZIP records; they are not official county or state population totals.

Explore More ZIP Codes

Nearby ZIP Codes in NH

ZIP CodeCityDistancePopulation estimate
ZIP 03585Lisbon6.9 mi2,456
ZIP 03740Bath7.3 mi1,097
ZIP 03561Littleton10.4 mi6,040
ZIP 03586Sugar Hill11.5 mi658
ZIP 03774North Haverhill13.4 mi1,420

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 →