Home Postcodes by state WA Cocklebiddy Cocklebiddy postcode WA Cocklebiddy 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 Cocklebiddy business listing Be the first listing in Cocklebiddy Also in postcode 6443BalladoniaWA 6443CaigunaWA 6443DundasWA 6443EuclaWA 6443Fraser RangeWA 6443HigginsvilleWA 6443MaduraWA 6443MundrabillaWA 6443NorsemanWA 6443WidgiemoolthaWA 6443 Common questionsWhat is the postcode for Cocklebiddy?Cocklebiddy, WA has the postcode 6443.What state is Cocklebiddy in?Cocklebiddy is in Western Australia (WA).What council is Cocklebiddy in?Cocklebiddy 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 Cocklebiddy. Browse other postcodes in Western Australia, or widen the search to every Australian postcode.