Idaho Falls, ID
Bonneville County · Idaho · United States
What this ZIP is
83405 has no measured residential population
Geographic and postal details below are accurate. For demographics of the surrounding area, use the nearby ZIP codes at the bottom of this page.
At a glance
83405 by the numbers
Postal and geographic facts for 83405. No demographic data exists for this ZIP code.
Location
Where 83405 is
| Coordinates | 43.4666, -112.0341 |
|---|---|
| Time zone | America/Boise |
| County | Bonneville County |
| State | Idaho (ID) |
| Coordinate source | GeoNames centroid |
Local time
America/Boise
Current weather
Live from the National Weather Service
Loading forecast…
Distance to major cities
Straight-line, computed from coordinates
| Denver, CO | 445.6 mi |
|---|---|
| Seattle, WA | 573.9 mi |
| San Francisco, CA | 670.9 mi |
| Phoenix, AZ | 692.2 mi |
Overview
Understanding ZIP code 83405
ZIP code 83405 is assigned to Idaho Falls, ID, and falls within Bonneville County. Like every US postal code, it began as a mail-routing device rather than a geographic boundary — the US Postal Service groups delivery routes under a single code so carriers and sorting equipment can process mail efficiently. This particular code, however, has no residential population attached to it — more on that below.
Where to stay
Where to stay in Idaho Falls, ID
Accommodation options in and around 83405 vary. Searching by the wider Idaho Falls area rather than the postal code alone will return the fullest set of results.
For reference, Denver, CO is about 445.6 miles away in a straight line, which is worth factoring in if you are comparing a stay here against one closer to the city centre.
Availability and pricing change constantly, so the live search below will give you a more accurate picture than any figure we could publish here. It opens results for this area on Booking.com.
Opens Booking.com in a new tab. We are not affiliated with Booking.com and receive nothing from this link.
Practical uses
What ZIP code 83405 is used for
Beyond addressing mail, 83405 does a lot of quiet administrative work. Retailers use it to calculate shipping and sales tax at checkout. Insurers use it to set premiums, since risk profiles vary geographically. Employers and marketers use it to define service areas. Government agencies use it to route benefits and organise reporting. If you have ever been asked for a postal code by a form that clearly does not intend to send you anything, this is why.
Because 83405 carries no residential population, it is used almost entirely for delivery and administrative routing rather than for demographic analysis. If you are researching the area around it, the neighbouring postal codes listed further down this page will be far more informative.
One caution worth repeating: a postal code is not a neighbourhood. 83405 may cover parts of several distinct areas, and a single neighbourhood in Idaho Falls may be split across more than one code. Boundaries also shift as USPS adjusts delivery routes. Treat the figures here as describing a delivery area, which is what they actually measure.
Nearby
ZIP codes near 83405
The eight closest postal codes by centroid distance, each with its own full profile. You can also browse every Idaho ZIP code or use the ZIP Express Lookup to search by city, county or time zone.
Other ZIP codes in Idaho Falls
Idaho Falls is served by 7 postal codes.
More in Bonneville County
Look up another
Search any ZIP code
Questions
Common questions about 83405
What city is ZIP code 83405 in?
Why is there no population data for 83405?
What time zone is 83405 in?
Does 83405 cover more than one city or county?
Can ZIP code 83405 change?
Methodology
Where this data comes from
- Postal geography — GeoNames open postal code database (CC BY 4.0), cross-checked against the US Census Gazetteer.
- Weather — NOAA National Weather Service, fetched live in your browser.
- Map — OpenStreetMap contributors (ODbL).