sippy-downs postcode qld Home ›› Postcode Finder ›› QLD ›› Sippy-Downs Sippy Downs local listingsThe suburb of Sippy Downs is located in QLD and has a postcode of 4556. Free sippy downs business listing! Get the first free listing in sippy downs! Search and find other Postcodes in Queensland or widen the search to Postcodes in Australia.