Home Postcode finder WA Tanami Tanami postcode WA Tanami is a locality in Western Australia covered by postcode 6770. Postcode 6770 State or territory Western Australia (WA) Region North West Suburbs Add a free Tanami business listing Be the first listing in Tanami Common questionsWhat is the postcode for Tanami?Tanami, WA has the postcode 6770.What state is Tanami in?Tanami is in Western Australia (WA).Does postcode 6770 cover more than one suburb?Yes. Postcode 6770 covers 7 localities, so the postcode alone does not identify Tanami. Browse other postcodes in Western Australia, or widen the search to every Australian postcode.