Home Postcode finder QLD Gumlow Gumlow postcode QLD Gumlow is a locality in Queensland covered by postcode 4815. Postcode 4815 State or territory Queensland (QLD) Region North QLD Add a free Gumlow business listing Be the first listing in Gumlow Common questionsWhat is the postcode for Gumlow?Gumlow, QLD has the postcode 4815.What state is Gumlow in?Gumlow is in Queensland (QLD).Does postcode 4815 cover more than one suburb?Yes. Postcode 4815 covers 6 localities, so the postcode alone does not identify Gumlow. Browse other postcodes in Queensland, or widen the search to every Australian postcode.