Home Postcode finder QLD Etna Creek Etna Creek postcode QLD Etna Creek is a locality in Queensland covered by postcode 4702. Postcode 4702 State or territory Queensland (QLD) Region Central QLD Add a free Etna Creek business listing Be the first listing in Etna Creek Common questionsWhat is the postcode for Etna Creek?Etna Creek, QLD has the postcode 4702.What state is Etna Creek in?Etna Creek is in Queensland (QLD).Does postcode 4702 cover more than one suburb?Yes. Postcode 4702 covers 87 localities, so the postcode alone does not identify Etna Creek. Browse other postcodes in Queensland, or widen the search to every Australian postcode.