Home Postcode finder QLD Deepwater Deepwater postcode QLD Deepwater is a locality in Queensland covered by postcode 4674. Postcode 4674 State or territory Queensland (QLD) Region Sunshine Coast Add a free Deepwater business listing Be the first listing in Deepwater Common questionsWhat is the postcode for Deepwater?Deepwater, QLD has the postcode 4674.What state is Deepwater in?Deepwater is in Queensland (QLD).Does postcode 4674 cover more than one suburb?Yes. Postcode 4674 covers 9 localities, so the postcode alone does not identify Deepwater. Browse other postcodes in Queensland, or widen the search to every Australian postcode.