Home Postcode finder QLD Obum Obum Obum Obum postcode QLD Obum Obum is a locality in Queensland covered by postcode 4309. Postcode 4309 State or territory Queensland (QLD) Region Western Suburbs Add a free Obum Obum business listing Be the first listing in Obum Obum Common questionsWhat is the postcode for Obum Obum?Obum Obum, QLD has the postcode 4309.What state is Obum Obum in?Obum Obum is in Queensland (QLD).Does postcode 4309 cover more than one suburb?Yes. Postcode 4309 covers 17 localities, so the postcode alone does not identify Obum Obum. Browse other postcodes in Queensland, or widen the search to every Australian postcode.