onkaparinga-hills postcode sa Home ›› Postcode Finder ›› SA ›› Onkaparinga-Hills Onkaparinga Hills local listingsThe suburb of Onkaparinga Hills is located in SA and has a postcode of 5163. Free onkaparinga hills business listing! Get the first free listing in onkaparinga hills! Search and find other Postcodes in South Australia or widen the search to Postcodes in Australia.