ZIP Code 82421

82421 is one of Wyoming's ZIP codes, delivering to addresses in Deaver, Big Horn County.

City: Deaver
County: Big Horn County
State: Wyoming
Prefix: 824xx

Where this code sits

82421 is part of the 824xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Deaver.

Deaver Wyoming ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 82421 delivers to without sharing its boundary.

307 Area code 307

ZIP codes nearest 82421

The ZIP codes whose reference points sit closest to 82421.
ZIP code	Distance	Delivers to
ZIP code 82423	3.4 mi	Frannie, WY
ZIP code 82420	7.2 mi	Cowley, WY
ZIP code 82412	10 mi	Byron, WY
ZIP code 82431	11 mi	Lovell, WY
ZIP code 82435	15 mi	Powell, WY
ZIP code 82440	20 mi	Ralston, WY
ZIP code 59008	25 mi	Belfry, MT
ZIP code 59014	29 mi	Bridger, MT

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 82421, plotted from its record coordinates.

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

Scope ZIP code 82421. 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.