| Zip Code | City | Population ↓ |
|---|---|---|
| 70506 | Lafayette | 42,318 |
| 70508 | Lafayette | 40,592 |
| 70592 | Youngsville | 32,167 |
| 70503 | Lafayette | 28,643 |
| 70501 | Lafayette | 26,465 |
| 70520 | Carencro | 20,390 |
| 70507 | Lafayette | 20,096 |
| 70518 | Broussard | 17,263 |
| 70529 | Duson | 12,949 |
| 70583 | Scott | 8,386 |
| 70558 | Milton | 24 |
The data shown reflect ZCTAs from the US Census. As of 2025, there are 11 ZCTAs in Lafayette Parish, Louisiana (US Census).