Home Postcodes by state WA Mardie Mardie postcode WA Mardie is a locality in Western Australia covered by postcode 6714. Postcode 6714 State or territory Western Australia (WA) Region North West Suburbs Council area Karratha Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Add a free Mardie business listing Be the first listing in Mardie Also in postcode 6714AntonymyreWA 6714Balla BallaWA 6714BayntonWA 6714BulgarraWA 6714BurrupWA 6714CleavervilleWA 6714Cooya PooyaWA 6714Gap RidgeWA 6714GnooreaWA 6714KarrathaWA 6714Karratha Industrial EstateWA 6714MaitlandWA 6714Millars WellWA 6714Mount AnketellWA 6714MulatagaWA 6714NickolWA 6714Pegs CreekWA 6714SherlockWA 6714Stove HillWA 6714 Common questionsWhat is the postcode for Mardie?Mardie, WA has the postcode 6714.What state is Mardie in?Mardie is in Western Australia (WA).What council is Mardie in?Mardie is in the Karratha local government area.Does postcode 6714 cover more than one suburb?Yes. Postcode 6714 covers 20 localities, so the postcode alone does not identify Mardie. Browse other postcodes in Western Australia, or widen the search to every Australian postcode.