5 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 70068 | La Place | 32,720 |
| 70084 | Reserve | 5,629 |
| 70051 | Garyville | 1,878 |
| 70049 | Edgard | 1,482 |
| 70076 | Mount Airy | 100 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 5 ZCTAs in St. John the Baptist Parish, Louisiana (US Census).