ZIP codes in Koochiching County
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- 55772 OrrKoochiching County
- 56627 Big FallsKoochiching County
- 56629 BirchdaleKoochiching County
- 56649 International FallsKoochiching County
- 56653 LittleforkKoochiching County
- 56654 BaudetteKoochiching County
- 56658 BemidjiKoochiching County
- 56660 MizpahKoochiching County
- 56668 International FallsKoochiching County