ZIP Code 80551

80551 is one of Colorado's ZIP codes, delivering to addresses in Windsor, Weld County.

City: Windsor
County: Weld County
State: Colorado
Prefix: 805xx

Where this code sits

80551 is part of the 805xx range, the group of codes handled by one mail processing centre. Windsor is served by 2 ZIP codes in total; the full list, with the county each falls in, is on the Windsor page.

Windsor Colorado ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 80551 delivers to without sharing its boundary.

ZIP codes nearest 80551

The ZIP codes whose reference points sit closest to 80551.
ZIP code	Distance	Delivers to
ZIP code 80550	0.4 mi	Windsor, CO
ZIP code 80546	4.2 mi	Severance, CO
ZIP code 80528	5.3 mi	Fort Collins, CO
ZIP code 80547	5.7 mi	Timnath, CO
ZIP code 80634	9.0 mi	Greeley, CO
ZIP code 80525	9.1 mi	Fort Collins, CO
ZIP code 80534	9.9 mi	Johnstown, CO
ZIP code 80632	10 mi	Greeley, 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 80551, plotted from its record coordinates.

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

Scope ZIP code 80551. 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.