blackbutt-south postcode qld Home ›› Postcode Finder ›› QLD ›› Blackbutt-South Blackbutt South local listingsThe suburb of Blackbutt South is located in QLD and has a postcode of 4306. Free blackbutt south business listing! Get the first free listing in blackbutt south! Search and find other Postcodes in Queensland or widen the search to Postcodes in Australia.