Home Postcode finder QLD Wynnum North Wynnum North postcode QLD Wynnum North is a locality in Queensland covered by postcode 4178. Postcode 4178 State or territory Queensland (QLD) Region Brisbane Central Add a free Wynnum North business listing More business listings in Wynnum North Businesses in Wynnum NorthBrisbane Bayside State College2287 Wynnum Rd · 07 38936333Soventix Wynnum North · 1300 559 003 Soventix Wynnum North · 1300 559 003 Common questionsWhat is the postcode for Wynnum North?Wynnum North, QLD has the postcode 4178.What state is Wynnum North in?Wynnum North is in Queensland (QLD).Does postcode 4178 cover more than one suburb?Yes. Postcode 4178 covers 6 localities, so the postcode alone does not identify Wynnum North. Browse other postcodes in Queensland, or widen the search to every Australian postcode.