Home Postcode finder QLD Doolbi Doolbi postcode QLD Doolbi is a locality in Queensland covered by postcode 4660. Postcode 4660 State or territory Queensland (QLD) Region Sunshine Coast Add a free Doolbi business listing Be the first listing in Doolbi Common questionsWhat is the postcode for Doolbi?Doolbi, QLD has the postcode 4660.What state is Doolbi in?Doolbi is in Queensland (QLD).Does postcode 4660 cover more than one suburb?Yes. Postcode 4660 covers 21 localities, so the postcode alone does not identify Doolbi. Browse other postcodes in Queensland, or widen the search to every Australian postcode.