7 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 49047 | Dowagiac | 14,350 |
| 49112 | Edwardsburg | 10,299 |
| 49031 | Cassopolis | 8,316 |
| 49067 | Marcellus | 3,938 |
| 49095 | Vandalia | 2,357 |
| 49061 | Jones | 1,818 |
| 49130 | Union | 1,282 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 7 ZCTAs in Cass County, Michigan (US Census).