| ZIP Code | ZIP Code Place Name | County | ZIP Code Type |
|---|---|---|---|
| 46340 | Hanna | LaPorte County | Standard |
| 46345 | Kingsbury | LaPorte County | PO Box |
| 46346 | Kingsford Heights | LaPorte County | PO Box |
| 46348 | La Crosse | LaPorte County | Standard |
| 46350 | La Porte | LaPorte County | Standard |
| 46352 | La Porte | LaPorte County | PO Box |
| 46360 | Michigan City | LaPorte County | Standard |
| 46361 | Michigan City | LaPorte County | PO Box |
| 46365 | Mill Creek | LaPorte County | Standard |
| 46371 | Rolling Prairie | LaPorte County | Standard |
| 46382 | Union Mills | LaPorte County | Standard |
| 46390 | Wanatah | LaPorte County | Standard |
| 46391 | Westville | LaPorte County | Standard |
| 46532 | Hamlet | Starke County | Standard |
| 46552 | New Carlisle | Saint Joseph County | Standard |
| 46554 | North Liberty | Saint Joseph County | Standard |
| 46574 | Walkerton | LaPorte County | Standard |