Home Postcodes by state SA 5580 Postcode 5580 5580 is the postcode for Curramulka, SA. Localities with postcode 5580CurramulkaSA Postcode 5580 State or territory South Australia (SA) Localities 1 Council area Yorke Peninsula Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 5577 · Postcode 5581