Home Postcode finder QLD Bluewater Bluewater postcode QLD Bluewater is a locality in Queensland covered by postcode 4818. Postcode 4818 State or territory Queensland (QLD) Region North QLD Add a free Bluewater business listing More business listings in Bluewater Businesses in BluewaterBluewater State School1 Buckby St · 07 47512333 Common questionsWhat is the postcode for Bluewater?Bluewater, QLD has the postcode 4818.What state is Bluewater in?Bluewater is in Queensland (QLD).Does postcode 4818 cover more than one suburb?Yes. Postcode 4818 covers 18 localities, so the postcode alone does not identify Bluewater. Browse other postcodes in Queensland, or widen the search to every Australian postcode.