Home Postcodes by state QLD 4055 Postcode 4055 4055 is the postcode for 4 localities in QLD: Bunya, Ferny Grove, Ferny Hills and Upper Kedron. Localities with postcode 4055BunyaQLDFerny GroveQLDFerny HillsQLDUpper KedronQLD Postcode 4055 State or territory Queensland (QLD) Localities 4 Council area Moreton Bay; Brisbane Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 4054 · Postcode 4059