Home Postcode finder QLD Blackbutt North Blackbutt North postcode QLD Blackbutt North is a locality in Queensland covered by postcode 4306. Postcode 4306 State or territory Queensland (QLD) Region Western Suburbs Add a free Blackbutt North business listing Be the first listing in Blackbutt North Common questionsWhat is the postcode for Blackbutt North?Blackbutt North, QLD has the postcode 4306.What state is Blackbutt North in?Blackbutt North is in Queensland (QLD).Does postcode 4306 cover more than one suburb?Yes. Postcode 4306 covers 56 localities, so the postcode alone does not identify Blackbutt North. Browse other postcodes in Queensland, or widen the search to every Australian postcode.