The Aiastia (San Miguel) city in Gipuzkoa province has 1 assigned the ZIP Code 20870.This same ZIP Code applies also to the following places.
| Province | City | ZIP Code |
|---|---|---|
| Gipuzkoa | Azkue (San Roke) | 20870 |
| Gipuzkoa | Elgoibar | 20870 |
| Gipuzkoa | Idotorbe (San Pedro) | 20870 |
| Gipuzkoa | Sallobente-Ermuaran | 20870 |
Check out the list of Spain ZIP Code