ZIP Code 03303

03303 is one of New Hampshire's ZIP codes, delivering to addresses in Concord, Merrimack County.

City: Concord
County: Merrimack County
State: New Hampshire
Prefix: 033xx

Where this code sits

03303 is part of the 033xx range, the group of codes handled by one mail processing centre. Concord is served by 4 ZIP codes in total; the full list, with the county each falls in, is on the Concord page.

Concord New Hampshire ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 03303 delivers to without sharing its boundary.

603 Area code 603

ZIP codes nearest 03303

The ZIP codes whose reference points sit closest to 03303.
ZIP code	Distance	Delivers to
ZIP code 03302	2.0 mi	Concord, NH
ZIP code 03229	6.1 mi	Contoocook, NH
ZIP code 03224	7.3 mi	Canterbury, NH
ZIP code 03301	7.9 mi	Concord, NH
ZIP code 03305	8.6 mi	Concord, NH
ZIP code 03268	8.9 mi	Salisbury, NH
ZIP code 03278	9.0 mi	Warner, NH
ZIP code 03307	10 mi	Loudon, 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 03303, plotted from its record coordinates.

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

Scope ZIP code 03303. 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.