Henniker New Hampshire ZIP Codes

Henniker holds a single ZIP code.

Every ZIP code in Henniker

The complete list of Henniker, New Hampshire ZIP codes with the county each falls in.
ZIP code	County
03242	Merrimack County

We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP. USPS delivery-type products are licensed, and no clean-rights source maps ZIP codes to neighbourhoods — so the Henniker codes above are listed without a column we would have to invent.

Scope every ZIP code recorded for Henniker. Source GeoNames US postal codes (2026-07 postal dump) and Census 2024 county Gazetteer (2024 Gazetteer). Updated 15 July 2026. ZIP codes are delivery-route groupings, not areas; the boundaries implied by any ZIP map are approximations.

How these codes cluster

Every Henniker ZIP code begins 032. Those first three digits identify the sectional center facility that processes mail for this part of New Hampshire. Statewide that range covers 64 ZIP codes, so Henniker accounts for 2% of it.

Every New Hampshire ZIP prefix and the region it covers →

Area codes covering Henniker

ZIP codes and area codes are separate systems — one routes mail, the other routes calls — and they do not share boundaries. The code below serves the same ground Henniker occupies.

603 Area code 603

Henniker New Hampshire area codes in full →

Where Henniker's ZIP codes sit

Each point is one Henniker ZIP code, plotted from its record coordinates.

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

Cities near Henniker

The closest places to Henniker with their own ZIP code list, nearest first.
City	Distance	ZIP codes
Hillsborough New Hampshire ZIP codes	6.0 mi	1 ZIP code
Warner New Hampshire ZIP codes	7.1 mi	1 ZIP code
Antrim New Hampshire ZIP codes	12 mi	1 ZIP code
Concord New Hampshire ZIP codes	13 mi	4 ZIP codes
Newbury New Hampshire ZIP codes	14 mi	1 ZIP code
Bow New Hampshire ZIP codes	14 mi	1 ZIP code
Goffstown New Hampshire ZIP codes	16 mi	1 ZIP code
Andover New Hampshire ZIP codes	17 mi	1 ZIP code

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