Home Postcodes by state WA Gibb Gibb postcode WA Gibb 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 Gibb business listing Be the first listing in Gibb Also in postcode 6743Cambridge GulfWA 6743DurackWA 6743KununurraWA 6743Lake ArgyleWA 6743WarmunWA 6743 Common questionsWhat is the postcode for Gibb?Gibb, WA has the postcode 6743.What state is Gibb in?Gibb is in Western Australia (WA).What council is Gibb in?Gibb 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 Gibb. Browse other postcodes in Western Australia, or widen the search to every Australian postcode.