Home Postcode finder QLD Cromarty Cromarty postcode QLD Cromarty is a locality in Queensland covered by postcode 4809. Postcode 4809 State or territory Queensland (QLD) Region North QLD Add a free Cromarty business listing Be the first listing in Cromarty Common questionsWhat is the postcode for Cromarty?Cromarty, QLD has the postcode 4809.What state is Cromarty in?Cromarty is in Queensland (QLD).Does postcode 4809 cover more than one suburb?Yes. Postcode 4809 covers 8 localities, so the postcode alone does not identify Cromarty. Browse other postcodes in Queensland, or widen the search to every Australian postcode.