7 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 49047 | Dowagiac | 14,506 |
| 49112 | Edwardsburg | 10,436 |
| 49031 | Cassopolis | 8,320 |
| 49067 | Marcellus | 4,031 |
| 49095 | Vandalia | 2,414 |
| 49061 | Jones | 1,924 |
| 49130 | Union | 1,216 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 7 ZCTAs in Cass County, Michigan (US Census).