10 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 49091 | Sturgis | 19,448 |
| 49093 | Three Rivers | 18,439 |
| 49099 | White Pigeon | 5,699 |
| 49042 | Constantine | 4,695 |
| 49032 | Centreville | 3,369 |
| 49040 | Colon | 3,341 |
| 49072 | Mendon | 2,875 |
| 49030 | Burr Oak | 2,435 |
| 49066 | Leonidas | 784 |
| 49075 | Nottawa | 154 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 10 ZCTAs in St. Joseph County, Michigan (US Census).