Find the last 4 digits (ZIP+4) for an address in 03237

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ZIP Code 03237 – Gilmanton, NH

Gilmanton, New Hampshire · Belknap County · Eastern time

ZIP code03237
CityGilmanton
StateNew Hampshire
CountyBelknap County
Area code603
Population2,575
Time zoneEastern · local time
ZIP typeStandard (has a Census ZCTA area)
Land area37.96 sq mi
Center (lat, long)43.4316, -71.3877

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Nearby ZIP codes

03837 Gilmanton Iron Works · 2.7 mi03220 Belmont · 5.6 mi03249 Gilford · 6.1 mi03298 Tilton · 7.1 mi03299 Tilton · 7.1 mi03810 Alton Bay · 7.3 mi03307 Loudon · 7.4 mi03252 Lochmere · 7.9 mi

About ZIP 03237

ZIP code 03237 is assigned to Gilmanton, New Hampshire. It lies in Belknap County. Its Census area covers about 37.96 square miles of land. The closest neighboring ZIP is 03837 (Gilmanton Iron Works), about 2.7 miles away.

Every address in 03237 also has a 4-digit add-on code (ZIP+4) that points to a smaller delivery area. Use the box above to find it.

Sources: US Census Bureau (ZCTA, county relationship files), GeoNames (CC BY 4.0), NANPA via NumberResearch.org (CC BY 4.0). Map © OpenStreetMap contributors. ZIP areas are approximate. Population: U.S. Census Bureau, ACS 5-year estimates, 2024 (ZCTA). Data sources