ZIP CodesZIP codes in Iron County, Michigan
Iron County, Michigan has 7 ZIP codes in this list, from 49902 to 49964. They cover 7 places, among them Alpha, Amasa, Caspian and Crystal Falls.
| ZIP code | Place | Land area (sq mi) | Map point |
|---|---|---|---|
| 49902 | Alpha | 0.7 | 46.044, -88.377 |
| 49903 | Amasa | 157 | 46.232, -88.451 |
| 49915 | Caspian | 1.2 | 46.064, -88.633 |
| 49920 | Crystal Falls | 402 | 46.109, -88.350 |
| 49927 | Gaastra | 16.6 | 46.053, -88.592 |
| 49935 | Iron River | 457 | 46.093, -88.646 |
| 49964 | Stambaugh | no area | 46.080, -88.629 |
The ZIP code areas of Iron County add up to about 1,034 square miles of land (2,679 sq km) as the Census Bureau draws them. The largest is 49935 (Iron River), with 457 square miles.
Using these codes
- In an address, the ZIP code comes last, after the city and the two-letter state: Alpha, MI 49902.
- Tap a ZIP code to open it in the look-up, with a copy button for the address line.
- A code can cross a county line, and one town can have several codes. The table shows the main place of each code.
- "No area" means the Census Bureau draws no area for that code. Such codes are usually for post office boxes or a single building.
Places and counties: GeoNames. Areas: U.S. Census Bureau, 2024 ZIP Code Tabulation Areas. Checked in November 2026. This site is not connected with the United States Postal Service; for mailing, confirm the address with USPS.