ZIP Code 81637

81637 is one of Colorado's ZIP codes, delivering to addresses in Gypsum, Eagle County.

City: Gypsum
County: Eagle County
State: Colorado
Prefix: 816xx

Where this code sits

81637 is part of the 816xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Gypsum.

Gypsum Colorado ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 81637 delivers to without sharing its boundary.

ZIP codes nearest 81637

The ZIP codes whose reference points sit closest to 81637.
ZIP code	Distance	Delivers to
ZIP code 81631	11 mi	Eagle, CO
ZIP code 80426	15 mi	Burns, CO
ZIP code 81655	16 mi	Wolcott, CO
ZIP code 81632	19 mi	Edwards, CO
ZIP code 81602	21 mi	Glenwood Springs, CO
ZIP code 80423	21 mi	Bond, CO
ZIP code 81601	21 mi	Glenwood Springs, CO
ZIP code 81621	21 mi	Basalt, 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 81637, plotted from its record coordinates.

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

Scope ZIP code 81637. 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.