ZIP Code 81231

81231 is one of Colorado's ZIP codes, delivering to addresses in Gunnison, Gunnison County.

City: Gunnison
County: Gunnison County
State: Colorado
Prefix: 812xx

Where this code sits

81231 is part of the 812xx range, the group of codes handled by one mail processing centre. Gunnison is served by 2 ZIP codes in total; the full list, with the county each falls in, is on the Gunnison page.

Gunnison Colorado ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 81231 delivers to without sharing its boundary.

ZIP codes nearest 81231

The ZIP codes whose reference points sit closest to 81231.
ZIP code	Distance	Delivers to
ZIP code 81230	0.5 mi	Gunnison, CO
ZIP code 81239	16 mi	Parlin, CO
ZIP code 81237	18 mi	Ohio City, CO
ZIP code 81243	21 mi	Powderhorn, CO
ZIP code 81224	22 mi	Crested Butte, CO
ZIP code 81241	23 mi	Pitkin, CO
ZIP code 81210	24 mi	Almont, CO
ZIP code 81225	25 mi	Crested Butte, 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 81231, plotted from its record coordinates.

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

Scope ZIP code 81231. 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.