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