new-harbourline postcode qld Home ›› Postcode Finder ›› QLD ›› New-Harbourline New Harbourline local listingsThe suburb of New Harbourline is located in QLD and has a postcode of 4858. Free new harbourline business listing! Get the first free listing in new harbourline! Search and find other Postcodes in Queensland or widen the search to Postcodes in Australia.