City · Wyoming · United States

Casper, WY — ZIP codes

5 ZIP codes · Natrona County

City: Casper
County: Natrona
State: Wyoming
Country: United States
Postal codes: 8260182602826048260582609
Single source
Coordinates: 42.8458, -106.3166 View on OpenStreetMap

ZIP codes (5)

Postal code	Place name	Verification
82601	Casper	Single source
82602	Casper	Single source
82604	Casper	Single source
82605	Casper	Single source
82609	Casper	Single source

Sources and verification

US ZIP codes have five digits. They are postal routing areas, not administrative boundaries: a ZIP can span more than one city or county, and the city shown is the primary USPS name for that code.

GeoNames. Last generated : 2026-08-21. Report an error.