In which county is ZIP code 82421 located?

ZIP 82421 is listed under Big Horn, WY.

When was this page updated?

This page was updated on 2026-01-08.

ZIP Code 82421: Deaver, WY

ZIP: 82421

County: Big Horn

Coordinates: 44.92570, -108.59790

ZIP Type: Standard

Time Zone: Mountain Time (MT)

Get a reliable snapshot of the Deaver, WY postal area 82421. This page summarizes county, coordinates, and local facts to help with services and location research.

Primary City	Deaver
ZIP Code	82421
County	Big Horn
State	WY
Latitude / Longitude	44.92570, -108.59790
ZIP Type	Standard
Time Zone	Mountain Time (MT)
Data Updated	2026-01-08

Maps & Useful Links

Open in Maps: Google Maps · OpenStreetMap

These links show the approximate center point for ZIP 82421 (not an exact boundary).

Geographic & Administrative Context

The geographic center of ZIP code 82421 is approximately 44.92570 (latitude) and -108.59790 (longitude). This location sits within Big Horn, contributing to regional planning across WY.

Local Coverage Notes

ZIP codes can cover multiple neighborhoods and unincorporated areas. Use ZIP 82421 for mail delivery and general location reference in Big Horn, WY.

Some addresses near Deaver may share this ZIP due to delivery routing and local service areas.

Related ZIP Codes (Nearby)

Explore other postal codes near Deaver within WY.

Frequently Asked Questions

What is the primary city for ZIP code 82421?

The primary city for this ZIP code is Deaver, located in WY.

In which county is 82421 located?

ZIP code 82421 is situated within Big Horn, WY.

What are the coordinates for 82421?

The approximate center point is 44.92570 (Latitude) and -108.59790 (Longitude).

Is ZIP code 82421 active?

This page lists ZIP 82421 as Listed based on the latest refresh date shown above.

Does ZIP 82421 cover multiple areas?

Yes. Many ZIP codes cover multiple neighborhoods or nearby areas. For exact boundaries, use official mapping tools.

Methodology & Data Notes

How we build this page: We generate this page from a structured ZIP dataset and refresh key fields (city, county, and coordinates) during scheduled updates. Coordinates represent an approximate center point, not an official boundary map.
Sources: Public ZIP reference datasets and geographic coordinate references. If you use specific sources (e.g., USPS, Census), list them on your About/Methodology page.

Page updated: 2026-01-08