Home Postcodes by state WA Warmun Warmun postcode WA Warmun is a locality in Western Australia covered by postcode 6743. Postcode 6743 State or territory Western Australia (WA) Region North West Suburbs Council area Halls Creek Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Add a free Warmun business listing Be the first listing in Warmun Also in postcode 6743Cambridge GulfWA 6743DurackWA 6743GibbWA 6743KununurraWA 6743Lake ArgyleWA 6743 Common questionsWhat is the postcode for Warmun?Warmun, WA has the postcode 6743.What state is Warmun in?Warmun is in Western Australia (WA).What council is Warmun in?Warmun is in the Halls Creek local government area.Does postcode 6743 cover more than one suburb?Yes. Postcode 6743 covers 6 localities, so the postcode alone does not identify Warmun. Browse other postcodes in Western Australia, or widen the search to every Australian postcode.