Idaho Falls, Idaho ZIP Codes
- ZIP records
4 - Sum of listed ZIP population estimates
125,162 - Counties represented
1 - Population range
19,696–47,972 per ZIP
Population sum includes positive estimates in these ZIP records; it is not an official city population.
Top ZIP Codes by Population
| Rank | ZIP Code | City | County | Population estimate |
|---|---|---|---|---|
| 1 | 83401 | Idaho Falls | Bonneville | 47,972 |
| 2 | 83402 | Idaho Falls | Bonneville | 29,994 |
| 3 | 83404 | Idaho Falls | Bonneville | 27,500 |
| 4 | 83406 | Idaho Falls | Bonneville | 19,696 |
Counties represented
All ZIP Codes in Idaho Falls
- ZIP 83401 — Bonneville County
- ZIP 83402 — Bonneville County
- ZIP 83404 — Bonneville County
- ZIP 83406 — Bonneville County
Methodology: ZIP records are grouped by the source file's primary city and state fields. Population ranges and sums use positive ZIP-level estimates; sums should not be read as official city totals. County links use each record's listed county assignment.