Iron County ZIP Codes

List of ZIP Codes in Iron County

The following table lists ZIP Codes associated with Iron County, Michigan, based on ZIP Code Tabulation Area (ZCTA) data from the U.S. Census Bureau.


S.N. Zip Code Latitude Longitude City Population Density
1 49902 46.04905 -88.37744 Alpha 222 118.6
2 49903 46.33455 -88.48496 Amasa 228 0.6
3 49915 46.06464 -88.62708 Caspian 520 166.8
4 49920 46.14087 -88.30079 Crystal Falls 4,243 4.1
5 49927 46.04475 -88.57108 Gaastra 404 9.4
6 49935 46.19493 -88.7463 Iron River 5,969 5.0


About Iron County ZIP Codes

Iron County in Michigan (MI) is served by approximately 6 ZIP Codes. These codes cover residential neighborhoods, business districts, and rural areas that fall under the county's jurisdiction.

Based on ZIP-level population estimates, the total population covered by these ZIP Codes is around 11,586 people. Population and density values vary from one ZIP Code to another, reflecting the mix of dense urban communities and lower-density suburban or rural zones.

Many of the most significant population centers in Iron County are located in cities such as Iron River, Crystal Falls, Caspian, Gaastra, Amasa. These cities and towns help define the economic and demographic character of the county.

Most ZIP Codes in Iron County, Michigan follow the America/Menominee time zone.