100 Smallest ZIP Codes in the United States by Population in Iron County, Michigan
Explore the 100 smallest ZIP codes in the United States ranked by population using U.S. Census demographic data. This page lists ZIP codes located in Iron County, Michigan.
| Rank | ZIP Code | City | State | Population |
|---|---|---|---|---|
| 1 | 49903 | AMASA | MI | 194 |
| 2 | 49902 | ALPHA | MI | 210 |
| 3 | 49927 | GAASTRA | MI | 390 |
| 4 | 49915 | CASPIAN | MI | 576 |
| 5 | 49920 | CRYSTAL FALLS | MI | 4,207 |
| 6 | 49935 | IRON RIVER | MI | 5,943 |