Zip Code 03285 — Thornton, NH

ZIP Code 03285 is associated with Thornton, NH, in Grafton County. The listed population estimate is 2,799; estimated density is 21.6 people per square mile. Among records with population estimates, it ranks #10 of 36 in Grafton County and #121 of 245 in NH.
Page generated: 2026-10-08. This is not the source data release date.

📍 View location on OpenStreetMap (43.924080, -71.643590)

Data MetricLocal Statistic
Postal / Zip Code03285
Primary CityThornton
State / ProvinceNH
CountyGrafton
Total Population2,799
Population Density21.6 people/sq mi
TimezoneAmerica/New_York

How 03285 Compares

MetricZIP 03285Grafton County recordsNH records
Population estimate2,79992,200 (sum)1,394,951 (sum)
Population Density21.6 /sq mi----
County population rank#10 of 36----
State population rank#121 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 03293Woodstock4.0 mi72
ZIP 03223Campton5.5 mi3,441
ZIP 03262North Woodstock7.0 mi1,142
ZIP 03259North Sandwich10.3 mi252
ZIP 03251Lincoln10.8 mi1,461

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 →