allendale-east postcode sa Home ›› Postcode Finder ›› SA ›› Allendale-East Allendale East local listingsThe suburb of Allendale East is located in SA and has a postcode of 5291. Free allendale east business listing! Get the first free listing in allendale east! Search and find other Postcodes in South Australia or widen the search to Postcodes in Australia.