ZIP Code 03440

03440 is one of New Hampshire's ZIP codes, delivering to addresses in Antrim, Hillsborough County.

City: Antrim
County: Hillsborough County
State: New Hampshire
Prefix: 034xx

Where this code sits

03440 is part of the 034xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Antrim.

Antrim New Hampshire ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 03440 delivers to without sharing its boundary.

603 Area code 603

ZIP codes nearest 03440

The ZIP codes whose reference points sit closest to 03440.
ZIP code	Distance	Delivers to
ZIP code 03442	3.6 mi	Bennington, NH
ZIP code 03244	4.3 mi	Hillsborough, NH
ZIP code 03449	6.1 mi	Hancock, NH
ZIP code 03043	7.9 mi	Francestown, NH
ZIP code 03047	8.3 mi	Greenfield, NH
ZIP code 03464	8.6 mi	Stoddard, NH
ZIP code 03242	10 mi	Henniker, NH
ZIP code 03280	11 mi	Washington, 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 03440, plotted from its record coordinates.

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

Scope ZIP code 03440. 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.