12 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 56001 | Mankato | 50,960 |
| 56055 | Lake Crystal | 3,868 |
| 56024 | Eagle Lake | 3,595 |
| 56063 | Madison Lake | 3,059 |
| 56065 | Mapleton | 2,828 |
| 56037 | Good Thunder | 1,449 |
| 56010 | Amboy | 1,087 |
| 56068 | Minnesota Lake | 971 |
| 56080 | Saint Clair | 759 |
| 56090 | Vernon Center | 581 |
| 56078 | Pemberton | 494 |
| 56034 | Garden City | 417 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 12 ZCTAs in Blue Earth County, Minnesota (US Census).