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zipcodes.pro — CITY/NH/GILMANTON

Gilmanton ZIP code, New Hampshire

The ZIP code for Gilmanton, NH is 03237, and its area code is 603.

USPS city name
1 ZIP code
Population
2,575
Area code
603

NANPA lists no telephone rate centre for Gilmanton itself, so these are the area codes of the nearest one, Gilmanton Iron Works (2.7 miles). A town on an area-code boundary can differ from its neighbour.

Gilmanton in numbers

About 2,575 people live in Gilmanton, in 1,097 households. The median household income is $111,359 a year, 12% above the New Hampshire median of $99,031 (US: $80,734). The median owner-occupied home is valued at $345,400 (14% below the New Hampshire median).

Population2,575Gilmanton2,575
Households1,097Gilmanton1,097
Median household income$111,359Gilmanton$111,359New Hampshire$99,031US $80,734
Median home value$345,400Gilmanton$345,400New Hampshire$402,500US $332,700

U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, for the ZIP code addressed as Gilmanton. Survey estimates carry margins of error, wider for small places. Sources and methods.

ZIP codes addressed as Gilmanton

ZIP codes with the USPS city name Gilmanton
ZIP City Type Population Median income Median home
03237 Gilmanton , NH Standard 2,575 $111,359 $345,400

Map of Gilmanton ZIP codes

03237

The ZIP codes of Gilmanton, NH, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.

Towns near Gilmanton

The nearest larger towns are Tilton Northfield (3,101 people, 10 mi), Laconia (17,085 people, 11 mi) and Franklin (8,799 people, 14 mi).

Towns near Gilmanton
TownPopulationDistance
Tilton Northfield 3,101 10.3 mi
Laconia 17,085 11.1 mi
Franklin 8,799 14.2 mi
Wolfeboro 2,531 14.3 mi
Farmington 3,924 16.0 mi
Meredith 2,617 16.2 mi
Concord 44,375 16.3 mi
Suncook 5,432 20.7 mi
Rochester 33,144 22.6 mi
Hooksett 5,876 23.6 mi
Plymouth 4,969 26.4 mi
Henniker 2,993 27.7 mi
Somersworth 12,111 28.0 mi
South Hooksett 5,902 28.0 mi

More nearby: every ZIP code in Belknap County · New Hampshire ZIP codes

Cite this page

zipcodes.pro. “Gilmanton, NH ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/nh/gilmanton

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