silky-oak postcode qldga Home ›› Postcode Finder ›› QLDGA ›› Silky-Oak Silky Oak local listingsThe suburb of Silky Oak is located in QLD and has a postcode of 4854. Free silky oak business listing! Get the first free listing in silky oak! Search and find other Postcodes in Queensland or widen the search to Postcodes in Australia.