minnie-downs postcode qld Home ›› Postcode Finder ›› QLD ›› Minnie-Downs Minnie Downs local listingsThe suburb of Minnie Downs is located in QLD and has a postcode of 4478. Free minnie downs business listing! Get the first free listing in minnie downs! Search and find other Postcodes in Queensland or widen the search to Postcodes in Australia.