ZIP Code 03051

03051 is one of New Hampshire's ZIP codes, delivering to addresses in Hudson, Hillsborough County.

City: Hudson
County: Hillsborough County
State: New Hampshire
Prefix: 030xx

Where this code sits

03051 is part of the 030xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Hudson.

Hudson New Hampshire ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 03051 delivers to without sharing its boundary.

603 Area code 603

ZIP codes nearest 03051

The ZIP codes whose reference points sit closest to 03051.
ZIP code	Distance	Delivers to
ZIP code 03061	2.8 mi	Nashua, NH
ZIP code 03060	2.9 mi	Nashua, NH
ZIP code 03064	3.3 mi	Nashua, NH
ZIP code 03062	5.0 mi	Nashua, NH
ZIP code 03063	5.1 mi	Nashua, NH
ZIP code 03052	5.6 mi	Litchfield, NH
ZIP code 03087	5.9 mi	Windham, NH
ZIP code 03076	6.1 mi	Pelham, NH

Straight-line distance between place reference points, not driving distance. Where a place has no Census Gazetteer point, its postal centroid is used instead.

Each point is the reference point for 03051, plotted from its record coordinates.

Reference points and footprint
Not an official NANPA boundary
Not a USPS delivery area

Scope ZIP code 03051. Source GeoNames US postal codes (2026-07 postal dump) and Census 2024 county Gazetteer (2024 Gazetteer). Updated 15 July 2026. A ZIP code is a set of delivery routes, not an area; the point shown is a record coordinate, not a centre.