ZIP Code 80643

80643 is one of Colorado's ZIP codes, delivering to addresses in Keenesburg, Weld County.

City: Keenesburg
County: Weld County
State: Colorado
Prefix: 806xx

Where this code sits

80643 is part of the 806xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Keenesburg.

Keenesburg Colorado ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 80643 delivers to without sharing its boundary.

ZIP codes nearest 80643

The ZIP codes whose reference points sit closest to 80643.
ZIP code	Distance	Delivers to
ZIP code 80652	8.7 mi	Roggen, CO
ZIP code 80642	11 mi	Hudson, CO
ZIP code 80621	19 mi	Fort Lupton, CO
ZIP code 80603	20 mi	Brighton, CO
ZIP code 80651	21 mi	Platteville, CO
ZIP code 80601	21 mi	Brighton, CO
ZIP code 80644	21 mi	Kersey, CO
ZIP code 80645	22 mi	La Salle, 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 80643, plotted from its record coordinates.

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

Scope ZIP code 80643. 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.