Iron County, Michigan ZIP Codes
- ZIP records
6 - Cities represented
6 - Sum of listed ZIP population estimates
11,610
Population sum includes positive estimates in these ZIP records; it is not an official county population.
Top ZIP Codes by Population
| Rank | ZIP Code | City | Population estimate |
|---|---|---|---|
| 1 | 49935 | Iron River | 5,841 |
| 2 | 49920 | Crystal Falls | 4,380 |
| 3 | 49915 | Caspian | 570 |
| 4 | 49927 | Gaastra | 371 |
| 5 | 49903 | Amasa | 233 |
| 6 | 49902 | Alpha | 215 |
Cities in Iron County
ZIP Directory
Browse all ZIP data for Michigan
Methodology: Records are grouped by the source file's listed county and state. Population sums add positive ZIP-level estimates and are not official county totals; city counts use distinct city labels in the source.