In which county is ZIP code 03837 located?

ZIP 03837 is listed under Belknap County, NH.

When was this page updated?

This page was updated on 2026-01-08.

ZIP Code 03837: Gilmanton Iron Works, NH

ZIP: 03837

County: Belknap County

Coordinates: 43.44660, -71.29950

ZIP Type: Standard

Time Zone: Eastern Time (ET)

This profile provides an in-depth look at ZIP code 03837, serving Gilmanton Iron Works in NH. It lies in Belknap County and supports delivery, planning, and address verification.

Primary City	Gilmanton Iron Works
ZIP Code	03837
County	Belknap County
State	NH
Latitude / Longitude	43.44660, -71.29950
ZIP Type	Standard
Time Zone	Eastern Time (ET)
Data Updated	2026-01-08

Maps & Useful Links

Open in Maps: Google Maps · OpenStreetMap

These links show the approximate center point for ZIP 03837 (not an exact boundary).

Geographic & Administrative Context

Coordinates for 03837 are listed as 43.44660 / -71.29950, useful for GPS and service checks in and around Gilmanton Iron Works, NH.

Local Coverage Notes

ZIP codes can cover multiple neighborhoods and unincorporated areas. Use ZIP 03837 for mail delivery and general location reference in Belknap County, NH.

Some addresses near Gilmanton Iron Works may share this ZIP due to delivery routing and local service areas.

Related ZIP Codes (Nearby)

Explore other postal codes near Gilmanton Iron Works within NH.

Frequently Asked Questions

What is the primary city for ZIP code 03837?

The primary city for this ZIP code is Gilmanton Iron Works, located in NH.

In which county is 03837 located?

ZIP code 03837 is situated within Belknap County, NH.

What are the coordinates for 03837?

The approximate center point is 43.44660 (Latitude) and -71.29950 (Longitude).

Is ZIP code 03837 active?

This page lists ZIP 03837 as Listed based on the latest refresh date shown above.

Does ZIP 03837 cover multiple areas?

Yes. Many ZIP codes cover multiple neighborhoods or nearby areas. For exact boundaries, use official mapping tools.

Methodology & Data Notes

How we build this page: We generate this page from a structured ZIP dataset and refresh key fields (city, county, and coordinates) during scheduled updates. Coordinates represent an approximate center point, not an official boundary map.
Sources: Public ZIP reference datasets and geographic coordinate references. If you use specific sources (e.g., USPS, Census), list them on your About/Methodology page.

Page updated: 2026-01-08