Asteasu Postal Codes: 20159 | Tolosaldea, Guipúzcoa, País Vasco
The Postal Codes (Códigos postales) for Asteasu is 20159 in Tolosaldea, Guipúzcoa, País Vasco, Tolosaldea, Spain. The table below lists Postal Codes and postcodes for places within Asteasu.
Postal Codes for Places in Asteasu
Showing 8 places in Asteasu. Last verified with official records on May 2, 2026.
| Asteasu | |
| Beballara | |
| Elizmendi | |
| Errekaballara | |
| Goiballara | |
| Olentzaroberri Baserria/Caserío Olentzaroberri | |
| Upazan | |
| Zona Industrial |
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Sample Address Format for Asteasu
[Sender Street Address]
[City, ZIP]
[Country]
Street Address / PO Box
Asteasu, Tolosaldea, Guipúzcoa, País Vasco, 20159
SPAIN
Asteasu on the Map
The map above highlights the geographic boundaries of the Asteasu municipalities in Spain.
Asteasu Quick Facts
| Country | Spain (ES) |
|---|---|
| Administrative Path | Spain → País Vasco → Guipúzcoa → Tolosaldea |
| Postal Code | 20159 |
| Autonomous Community | País Vasco |
| Provinces | Guipúzcoa |
| Regions | Tolosaldea |
| ISO Codes | ES / ESP / 724 |
| Top-level domain (ccTLD) | .es |
| Coordinates | 43.19436, -2.09818 |
| Places | 8 |
What to Know About Asteasu
Key Facts
Asteasu is a municipality located in the Tolosaldea comarca (district) within the province of Guipúzcoa, in the autonomous community of the Basque Country, Spain. Situated in the northern part of the Iberian Peninsula, Asteasu lies approximately 20 kilometers south of the Bay of Biscay coastline and about 20 kilometers southwest of the provincial capital, San Sebastián. The municipality covers an area of roughly 16.8 square kilometers and has a population of approximately 1,500 residents. Asteasu is part of the historical region of Gipuzkoa and is characterized by its rural landscape within the Basque interior, featuring rolling hills and traditional Basque farmhouses known as baserriak. The municipality itself does not contain further official administrative subdivisions below the municipal level. For detailed postal code information and services within the municipality of Asteasu, please consult the relevant local administrative resources.
Neighboring Regions
- Aia
- Alkiza
- Anoeta
- Larraul
- Villabona-Amasa
- Zizurkil