sunnybank-south postcode qld Home ›› Postcode Finder ›› QLD ›› Sunnybank-South Sunnybank South local listingsThe suburb of Sunnybank South is located in QLD and has a postcode of 4109. Free sunnybank south business listing! Get the first free listing in sunnybank south! Search and find other Postcodes in Queensland or widen the search to Postcodes in Australia.