ZIP Code 81623

81623 is one of Colorado's ZIP codes, delivering to addresses in Carbondale, Garfield County.

City: Carbondale
County: Garfield County
State: Colorado
Prefix: 816xx

Where this code sits

81623 is part of the 816xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Carbondale.

Carbondale Colorado ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 81623 delivers to without sharing its boundary.

ZIP codes nearest 81623

The ZIP codes whose reference points sit closest to 81623.
ZIP code	Distance	Delivers to
ZIP code 81654	9.5 mi	Snowmass, CO
ZIP code 81621	13 mi	Basalt, CO
ZIP code 81615	15 mi	Snowmass Village, CO
ZIP code 81656	17 mi	Woody Creek, CO
ZIP code 81612	17 mi	Aspen, CO
ZIP code 81601	20 mi	Glenwood Springs, CO
ZIP code 81611	21 mi	Aspen, CO
ZIP code 81602	22 mi	Glenwood Springs, CO

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 81623, plotted from its record coordinates.

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

Scope ZIP code 81623. 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.