Cities, villages, and townships

Cities

    * Caspian
    * Crystal Falls
    * Gaastra
    * Iron River

Villages

    * Alpha

Unincorporated communities

    * Amasa

Townships

    * Bates Township
    * Crystal Falls Township

   

    * Hematite Township
    * Iron River Township

   

    * Mansfield Township
    * Mastodon Township

   

    * Stambaugh Township