Post Offices List in Cassia County, Idaho:
| Albion Post Office | 150 W Market St, Albion, ID 83311 |
| Almo Post Office | 3001 Elba Almo Rd, Almo, ID 83312 |
| Burley Post Office | 1353 Overland Ave, Burley, ID 83318 |
| Declo Post Office | 17 W Main St, Declo, ID 83323 |
| Malta Post Office | 15 S Main St, Malta, ID 83342 |
| Oakley Post Office | 130 W Main St, Oakley, ID 83346 |