ZIP Code 83403 is located in Idaho Falls Idaho. 83403 is entirely within Bonneville County. Regionally, 83403 is located in the Idaho Falls-Pocatello Area.
| ZIP Code Name | Idaho Falls |
| Primary County | Bonneville County |
| ZIP Code Type | PO Box |
| Current Time | MDT |
| Coordinates | 43.49427032,-112.02109528 |
| Adjacent ZIP Codes | |
| Region | Idaho Falls-Pocatello Area |
| Metropolitan/Micropolitan Stat Area | Idaho Falls, ID |
| Time Zone | Mountain Daylight Time |
| IANA Timezone | America/Boise |
| School Districts in 83403 | |
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