Home Postcodes by state QLD 4489 Postcode 4489 4489 is the postcode for Wyandra, QLD. Localities with postcode 4489WyandraQLD Postcode 4489 State or territory Queensland (QLD) Localities 1 Council area Paroo Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 4488 · Postcode 4490