The Gartzain city in Navarra province has 1 assigned the ZIP Code 31730.This same ZIP Code applies also to the following places.
| Province | City | ZIP Code |
|---|---|---|
| Navarra | Aitzano | 31730 |
| Navarra | Ariztegi | 31730 |
| Navarra | Etxerri | 31730 |
| Navarra | Irurita | 31730 |
Check out the list of Spain ZIP Code