Home Postcode finder QLD Hibernia Hibernia postcode QLD Hibernia is a locality in Queensland covered by postcode 4723. Postcode 4723 State or territory Queensland (QLD) Region Central QLD Add a free Hibernia business listing Be the first listing in Hibernia Common questionsWhat is the postcode for Hibernia?Hibernia, QLD has the postcode 4723.What state is Hibernia in?Hibernia is in Queensland (QLD).Does postcode 4723 cover more than one suburb?Yes. Postcode 4723 covers 11 localities, so the postcode alone does not identify Hibernia. Browse other postcodes in Queensland, or widen the search to every Australian postcode.