Idaho Falls, ID ZIP Codes
Idaho Falls, Idaho has 7 ZIP codes: 4 for street addresses (, , and ), 2 for PO boxes ( and ) and 1 for a single organization.
Your street decides which one you use.
Which Idaho Falls ZIP code is my address in?
Street ranges from the Census Bureau, 2026. PO box and organization ZIP codes are not found by street. A new street may be missing: address not found?
Idaho Falls ZIP code map
Tap or point to an area to see its ZIP code.Full-size map
83403, 83405 and 83415 have no area on the map: they are PO box or single-organization ZIP codes. Dashed line: Idaho Falls city limits.
Map: Census Bureau ZIP Code Tabulation Areas (2020) and place limits (2024).
All Idaho Falls ZIP codes by type
| ZIP | Type and post office or station |
|---|---|
| 83401 | street delivery Idaho Falls |
| 83402 | street delivery Eagle Rock |
| 83403 | PO boxes at the Idaho Falls post office Idaho Falls |
| 83404 | street delivery Idaho Falls |
| 83405 | PO boxes at the Eagle Rock post office Eagle Rock |
| 83406 | street delivery Idaho Falls |
| 83415 | one organization Idaho Falls |
Why your mail may say Idaho Falls when you live outside it
Idaho Falls ZIP codes also cover Ammon, Lincoln and Ucon, so a letter addressed to Idaho Falls can go to a home outside the city limits.
A ZIP code does not set your city, school district or tax. Bonneville County property records show which city you are in.
Idaho Falls ZIP code questions
What is the main ZIP code for Idaho Falls?
83401, the ZIP code of the main Idaho Falls post office at 605 4th St.
Which Idaho Falls ZIP codes are for PO boxes only?
83403 and 83405. Mail to them goes to boxes at the post office, not to street addresses.
What county is Idaho Falls in?
Bonneville County.
ZIP codes for towns near Idaho Falls
More towns near Idaho Falls: Roy, Clearfield, Syracuse, Layton, Butte-Silver Bow, Kaysville, Bountiful, Salt Lake City, Magna.
Sources and last checked
USPS ZIP Locale Detail (October 1, 2026), GeoNames (CC BY 4.0), U.S. Census Bureau, HUD-USPS crosswalk.
Checked October 20, 2026. Sources · How we build our lists · Corrections