coalstoun-lakes postcode qld Home ›› Postcode Finder ›› QLD ›› Coalstoun-Lakes Coalstoun Lakes local listingsThe suburb of Coalstoun Lakes is located in QLD and has a postcode of 4621. Free coalstoun lakes business listing! Get the first free listing in coalstoun lakes! Search and find other Postcodes in Queensland or widen the search to Postcodes in Australia.