| ZIP Code | ZIP Code Place Name | County | ZIP Code Type |
|---|---|---|---|
| 83420 | Ashton | Fremont County | Standard |
| 83421 | Chester | Fremont County | PO Box |
| 83429 | Island Park | Fremont County | Standard |
| 83433 | Macks Inn | Fremont County | PO Box |
| 83434 | Menan | Jefferson County | Standard |
| 83436 | Newdale | Madison County | Standard |
| 83438 | Parker | Fremont County | PO Box |
| 83440 | Rexburg | Madison County | Standard |
| 83441 | Rexburg | Madison County | Unique |
| 83445 | Saint Anthony | Fremont County | Standard |
| 83448 | Sugar City | Madison County | Standard |
| 83451 | Teton | Fremont County | Standard |
| 83460 | Rexburg | Madison County | Unique |