Cassia County ZIP Codes
Idaho, United States · 6 codes
Cassia County in Idaho has 6 ZIP codes, from 83311 to 83346, serving 6 places.
ZIP codes in Cassia
Frequently asked questions
What is the ZIP code of Cassia?
Cassia has 6 ZIP codes, from 83311 to 83346. The table lists the places each one serves.
How many places are listed in Cassia County?
6 places.
Source: GeoNames postal codes (CC BY 4.0), geonames.org, retrieved 2026-10-22. Place coordinates are approximate. Check with the national postal service before sending anything valuable.