willunga-hill postcode sa Home ›› Postcode Finder ›› SA ›› Willunga-Hill Willunga Hill local listingsThe suburb of Willunga Hill is located in SA and has a postcode of 5172. Free willunga hill business listing! Get the first free listing in willunga hill! Search and find other Postcodes in South Australia or widen the search to Postcodes in Australia.