ZIP Code 03278

03278 is one of New Hampshire's ZIP codes, delivering to addresses in Warner, Merrimack County.

City: Warner
County: Merrimack County
State: New Hampshire
Prefix: 032xx

Where this code sits

03278 is part of the 032xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Warner.

Warner New Hampshire ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 03278 delivers to without sharing its boundary.

603 Area code 603

ZIP codes nearest 03278

The ZIP codes whose reference points sit closest to 03278.
ZIP code	Distance	Delivers to
ZIP code 03273	4.7 mi	South Sutton, NH
ZIP code 03260	6.5 mi	North Sutton, NH
ZIP code 03221	7.3 mi	Bradford, NH
ZIP code 03272	8.1 mi	South Newbury, NH
ZIP code 03242	8.7 mi	Henniker, NH
ZIP code 03302	8.7 mi	Concord, NH
ZIP code 03255	9.0 mi	Newbury, NH
ZIP code 03303	9.0 mi	Concord, 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 03278, plotted from its record coordinates.

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

Scope ZIP code 03278. 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.