11 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 56649 | International Falls | 8,825 |
| 56653 | Littlefork | 1,239 |
| 56661 | Northome | 895 |
| 56669 | Kabetogama | 264 |
| 56629 | Birchdale | 224 |
| 56668 | Ranier | 217 |
| 56660 | Mizpah | 193 |
| 56627 | Big Falls | 192 |
| 56654 | Loman | 109 |
| 55772 | Nett Lake | 77 |
| 56658 | Margie | 0 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 11 ZCTAs in Koochiching County, Minnesota (US Census).