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City ZIP codes · Idaho

Idaho Falls, ID ZIP Codes

7 ZIP codes use the postal name Idaho Falls, Idaho (Census 2020 ZCTAs and GeoNames postal codes, October 2026): 4 residential and 3 for PO boxes or a single organization. Median household income runs from $74,517 in 83402 to $86,991 in 83406 (Census Bureau, ACS 2020-2024). Idaho Falls's most populous ZIP code is 83401, with 47,972 people (ACS 2020-2024); 0% of its land is in the city of Idaho Falls.

  • ACS2020-24
  • Census2020
  • GeoNames2026

Where are Idaho Falls's ZIP codes?

83401: $79k median household income83402: $75k median household income83404: $82k median household income83406: $87k median household income8340283401834068340483401: $79k median household income83402: $75k median household income83404: $82k median household income83406: $87k median household income8340283401834068340483401: $79k median household income83402: $75k median household income83404: $82k median household income83406: $87k median household income834028340183406
The 4 residential ZIP codes named Idaho Falls, shaded by median household income in national fifths (ACS 2020-2024). Select a ZIP to open it. <$54.1k$98.1k+no figure

Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries; ACS 2020-2024 5-year estimates (B19013).

How different are Idaho Falls's ZIP codes?

The highest median household income is in 83406 ($86,991), the lowest in 83402 ($74,517). Home values run from $334,900 in 83402 to $394,300 in 83404.

Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B19013, B25077, B01003).

All 4 residential ZIP codes of Idaho Falls

Residential ZIP codes with the postal name Idaho Falls, ID, largest first (ACS 2020-2024); sort by any column
County
83401 Bonneville County 47,972 243 $79k $359k
83402 Bonneville County 29,994 175 $75k $335k
83404 Bonneville County 27,500 1,101 $82k $394k
83406 Bonneville County 19,696 615 $87k $392k

Download the 7 ZIP codes as CSV

Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates; 2023 Gazetteer land areas (2020 ZCTAs); town names from simplemaps US ZIP Codes (CC BY 4.0) and GeoNames (CC BY 4.0).

PO Box and single-organization ZIP codes in Idaho Falls

3 ZIP codes named Idaho Falls have no residential delivery area: post office boxes, or one organization (a large employer, an agency, a university) with its own code. The Census Bureau publishes no figures for them.

Idaho Falls, ID: ZIP codes without a residential area, for PO boxes or one organization (GeoNames postal codes; USPS does not publish openly which is which)
ZIPCounty
83403Bonneville County
83405Bonneville County
83415Bonneville County

Source: GeoNames postal codes (CC BY 4.0); a ZIP code with no Census ZCTA has no residential delivery area.

Which counties do Idaho Falls's ZIP codes reach?

Idaho Falls's residential ZIP codes lie in 2 counties: Bonneville County (4 ZIP codes mainly there), Jefferson County (part of a ZIP code).

Which places do Idaho Falls's ZIP codes cover?

A postal name is not a city limit. By the Census Bureau's places, Idaho Falls's residential ZIP codes cover Idaho Falls itself and 3 other places, each listed with the ZIP codes that have at least 5% of their land in it or hold most of the place:

Source: U.S. Census Bureau, 2020 ZCTA-to-place relationship file (shares of land).

Which first three digits do Idaho Falls's ZIP codes use?

The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. Every ZIP code of Idaho Falls starts with 834.

Three-digit prefixes of Idaho Falls's ZIP codes, the sectional center for each (USPS labeling list L005, effective October 1, 2026) and how many of the prefix's codes are Idaho Falls's
PrefixSectional centerHereAll codes
834 Pocatello, ID (SCF 832) 7 46

Source: U.S. Postal Service, labeling list L005 (3-digit ZIP Code prefix groups, SCF sortation), effective October 1, 2026.