ZIP Code 03580

03580 is one of New Hampshire's ZIP codes, delivering to addresses in Franconia, Grafton County.

City: Franconia
County: Grafton County
State: New Hampshire
Prefix: 035xx

Where this code sits

03580 is part of the 035xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Franconia.

Franconia New Hampshire ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 03580 delivers to without sharing its boundary.

603 Area code 603

ZIP codes nearest 03580

The ZIP codes whose reference points sit closest to 03580.
ZIP code	Distance	Delivers to
ZIP code 03586	2.4 mi	Sugar Hill, NH
ZIP code 03574	6.2 mi	Bethlehem, NH
ZIP code 03585	7.2 mi	Lisbon, NH
ZIP code 03561	7.4 mi	Littleton, NH
ZIP code 03251	11 mi	Lincoln, NH
ZIP code 03595	11 mi	Twin Mountain, NH
ZIP code 03740	12 mi	Bath, NH
ZIP code 03262	12 mi	North Woodstock, 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 03580, plotted from its record coordinates.

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

Scope ZIP code 03580. 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.