ZIP Code 03588

03588 is one of New Hampshire's ZIP codes, delivering to addresses in Milan, Coos County.

City: Milan
County: Coos County
State: New Hampshire
Prefix: 035xx

Where this code sits

03588 is part of the 035xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Milan.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 03588 delivers to without sharing its boundary.

603 Area code 603

ZIP codes nearest 03588

The ZIP codes whose reference points sit closest to 03588.
ZIP code	Distance	Delivers to
ZIP code 03570	7.3 mi	Berlin, NH
ZIP code 04261	11 mi	Newry, ME
ZIP code 03589	13 mi	Mount Washington, NH
ZIP code 03597	13 mi	West Stewartstown, NH
ZIP code 03581	13 mi	Gorham, NH
ZIP code 03579	15 mi	Errol, NH
ZIP code 03593	15 mi	Randolph, NH
ZIP code 03582	16 mi	Groveton, 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 03588, plotted from its record coordinates.

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

Scope ZIP code 03588. 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.