ZIP Code 80510

80510 is one of Colorado's ZIP codes, delivering to addresses in Allenspark, Boulder County.

City: Allenspark
County: Boulder County
State: Colorado
Prefix: 805xx

Where this code sits

80510 is part of the 805xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Allenspark.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 80510 delivers to without sharing its boundary.

ZIP codes nearest 80510

The ZIP codes whose reference points sit closest to 80510.
ZIP code	Distance	Delivers to
ZIP code 80517	9.6 mi	Estes Park, CO
ZIP code 80455	10 mi	Jamestown, CO
ZIP code 80540	10 mi	Lyons, CO
ZIP code 80481	11 mi	Ward, CO
ZIP code 80306	11 mi	Boulder, CO
ZIP code 80307	12 mi	Boulder, CO
ZIP code 80314	12 mi	Boulder, CO
ZIP code 80308	16 mi	Boulder, 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 80510, plotted from its record coordinates.

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

Scope ZIP code 80510. 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.