diamantina-lakes postcode qldga Home ›› Postcode Finder ›› QLDGA ›› Diamantina-Lakes Diamantina Lakes local listingsThe suburb of Diamantina Lakes is located in QLD and has a postcode of 4735. Free diamantina lakes business listing! Get the first free listing in diamantina lakes! Search and find other Postcodes in Queensland or widen the search to Postcodes in Australia.