| Municipality | ZIP Code |
|---|---|
| Gonzaga | 3513 |
| Location | Municipality | Province | Region | ZIP Code |
|---|---|---|---|---|
| Santa Clara | Gonzaga | Cagayan | Cagayan Valley | 3513 |
| Santa Cruz | Gonzaga | Cagayan | Cagayan Valley | 3513 |
| Santa Maria | Gonzaga | Cagayan | Cagayan Valley | 3513 |
| Smart | Gonzaga | Cagayan | Cagayan Valley | 3513 |
| Tapel | Gonzaga | Cagayan | Cagayan Valley | 3513 |
