balnagowan postcode qld Home ›› Postcode Finder ›› QLD ›› Balnagowan Balnagowan local listingsThe suburb of Balnagowan is located in QLD and has a postcode of 4740. Free balnagowan business listing! Get the first free listing in balnagowan! Search and find other Postcodes in Queensland or widen the search to Postcodes in Australia.