| Municipality | ZIP Code |
|---|---|
| Laoag | 2900 |
| Location | Municipality | Province | Region | ZIP Code |
|---|---|---|---|---|
| Bgy. No. 8, San Vicente | Laoag | Ilocos Norte | Ilocos Region | 2900 |
| Bgy. No. 9, Santa Angela | Laoag | Ilocos Norte | Ilocos Region | 2900 |
| Bry. No. 18, San Quirino | Laoag | Ilocos Norte | Ilocos Region | 2900 |
| Bry. No. 48-A, Cabungaan North | Laoag | Ilocos Norte | Ilocos Region | 2900 |
