ZIP Code 81090

81090 is one of Colorado's ZIP codes, delivering to addresses in Walsh, Baca County.

City: Walsh
County: Baca County
State: Colorado
Prefix: 810xx

Where this code sits

81090 is part of the 810xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Walsh.

Walsh Colorado ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 81090 delivers to without sharing its boundary.

719 Area code 719

ZIP codes nearest 81090

The ZIP codes whose reference points sit closest to 81090.
ZIP code	Distance	Delivers to
ZIP code 81087	11 mi	Vilas, CO
ZIP code 81084	15 mi	Two Buttes, CO
ZIP code 81073	20 mi	Springfield, CO
ZIP code 81029	23 mi	Campo, CO
ZIP code 67862	23 mi	Manter, KS
ZIP code 67950	30 mi	Elkhart, KS
ZIP code 67953	31 mi	Richfield, KS
ZIP code 67855	33 mi	Johnson, KS

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 81090, plotted from its record coordinates.

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

Scope ZIP code 81090. 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.