ZIP Code 81233

81233 is one of Colorado's ZIP codes, delivering to addresses in Howard, Fremont County.

City: Howard
County: Fremont County
State: Colorado
Prefix: 812xx

Where this code sits

81233 is part of the 812xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Howard.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 81233 delivers to without sharing its boundary.

719 Area code 719

ZIP codes nearest 81233

The ZIP codes whose reference points sit closest to 81233.
ZIP code	Distance	Delivers to
ZIP code 81222	2.1 mi	Coaldale, CO
ZIP code 81223	5.2 mi	Cotopaxi, CO
ZIP code 81232	13 mi	Hillside, CO
ZIP code 81201	15 mi	Salida, CO
ZIP code 81215	17 mi	Canon City, CO
ZIP code 81242	18 mi	Poncha Springs, CO
ZIP code 81155	20 mi	Villa Grove, CO
ZIP code 81143	26 mi	Moffat, 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 81233, plotted from its record coordinates.

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

Scope ZIP code 81233. 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.