Home Postcodes by state QLD 4427 Postcode 4427 4427 is the postcode for 4 localities in QLD: Clifford, Yuleba, Yuleba North and Yuleba South. Localities with postcode 4427CliffordQLDYulebaQLDYuleba NorthQLDYuleba SouthQLD Postcode 4427 State or territory Queensland (QLD) Localities 4 Council area Western Downs; Maranoa Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 4426 · Postcode 4428