Home Postcodes by state WA Dundas Dundas postcode WA Dundas is a locality in Western Australia covered by postcode 6443. Postcode 6443 State or territory Western Australia (WA) Region Wa Subs 1 G Flds Council area Dundas Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Add a free Dundas business listing Be the first listing in Dundas Also in postcode 6443BalladoniaWA 6443CaigunaWA 6443CocklebiddyWA 6443EuclaWA 6443Fraser RangeWA 6443HigginsvilleWA 6443MaduraWA 6443MundrabillaWA 6443NorsemanWA 6443WidgiemoolthaWA 6443 Other places called DundasDundasNSW 2117DundasQLD 4306 Common questionsWhat is the postcode for Dundas?Dundas, WA has the postcode 6443.What state is Dundas in?Dundas is in Western Australia (WA).What council is Dundas in?Dundas is in the Dundas local government area.Does postcode 6443 cover more than one suburb?Yes. Postcode 6443 covers 11 localities, so the postcode alone does not identify Dundas. Browse other postcodes in Western Australia, or widen the search to every Australian postcode.