wallumbilla-south postcode qld Home ›› Postcode Finder ›› QLD ›› Wallumbilla-South Wallumbilla South local listingsThe suburb of Wallumbilla South is located in QLD and has a postcode of 4428. Free wallumbilla south business listing! Get the first free listing in wallumbilla south! Search and find other Postcodes in Queensland or widen the search to Postcodes in Australia.