ZIP Code 03103

03103 is one of New Hampshire's ZIP codes, delivering to addresses in Manchester, Hillsborough County.

City

Manchester

County

Hillsborough County

State

New Hampshire

Prefix

031xx

Where this code sits

03103 is part of the 031xx range, the group of codes handled by one mail processing centre. Manchester is served by 8 ZIP codes in total; the full list, with the county each falls in, is on the Manchester page.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 03103 delivers to without sharing its boundary.

ZIP codes nearest 03103

The ZIP codes whose reference points sit closest to 03103.
ZIP code	Distance	Delivers to
ZIP code 03109	1.9 mi	Manchester, NH
ZIP code 03101	2.0 mi	Manchester, NH
ZIP code 03105	2.1 mi	Manchester, NH
ZIP code 03108	2.1 mi	Manchester, NH
ZIP code 03111	2.1 mi	Manchester, NH
ZIP code 03102	2.8 mi	Manchester, NH
ZIP code 03104	2.9 mi	Manchester, NH
ZIP code 03110	4.0 mi	Bedford, 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 03103, plotted from its record coordinates.

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

Scope ZIP code 03103. 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.