| Zip Code | City | Population ↓ |
|---|---|---|
| 55616 | Two Harbors | 7,300 |
| 55731 | Ely | 5,297 |
| 55614 | Silver Bay | 2,390 |
| 55603 | Finland | 393 |
| 55607 | Isabella | 245 |
| 55601 | Beaver Bay | 152 |
| 55609 | Knife River | 135 |
| 55796 | Winton | 112 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 8 ZCTAs in Lake County, Minnesota (US Census).