ZIP Code 80734

80734 is one of Colorado's ZIP codes, delivering to addresses in Holyoke, Phillips County.

City: Holyoke
County: Phillips County
State: Colorado
Prefix: 807xx

Where this code sits

80734 is part of the 807xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Holyoke.

Holyoke Colorado ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 80734 delivers to without sharing its boundary.

ZIP codes nearest 80734

The ZIP codes whose reference points sit closest to 80734.
ZIP code	Distance	Delivers to
ZIP code 80721	9.1 mi	Amherst, CO
ZIP code 80746	10 mi	Paoli, CO
ZIP code 80731	17 mi	Haxtun, CO
ZIP code 69168	22 mi	Venango, NE
ZIP code 80744	26 mi	Ovid, CO
ZIP code 80749	26 mi	Sedgwick, CO
ZIP code 80737	27 mi	Julesburg, CO
ZIP code 69023	29 mi	Champion, NE

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 80734, plotted from its record coordinates.

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

Scope ZIP code 80734. 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.