allenby-gardens postcode sa Home ›› Postcode Finder ›› SA ›› Allenby-Gardens Allenby Gardens local listingsThe suburb of Allenby Gardens is located in SA and has a postcode of 5009. Free allenby gardens business listing! Get the first free listing in allenby gardens! Search and find other Postcodes in South Australia or widen the search to Postcodes in Australia.