karana-downs postcode qld Home ›› Postcode Finder ›› QLD ›› Karana-Downs Karana Downs local listingsThe suburb of Karana Downs is located in QLD and has a postcode of 4306. Free karana downs business listing! Get the first free listing in karana downs! Search and find other Postcodes in Queensland or widen the search to Postcodes in Australia.