Spain postcode area
ES 20
The ES 20 postcode zone is centred around Donostia-San Sebastian. It represents 330 postcode-locality records in the source data.
Open on map ES20
REFERENCE CENTRE43.1865, -2.1756
The reference centre is calculated from available postcode locations and is not an official administrative boundary.
CountrySpain (ES)
Postcode prefix20
Reference localityDonostia-San Sebastian
Map queryES20
Using ES 20 in logistics
Freight planners commonly use leading postcode characters to describe a broad collection or delivery area. The ES 20 prefix gives a quick geographic reference around Donostia-San Sebastian, while the interactive map helps teams compare it with other European regions.
Always confirm the complete postcode, street and delivery address before pricing, routing or dispatching a vehicle. Prefix zones are planning references and may not follow administrative boundaries.