Home Postcode finder WA Namban Namban postcode WA Namban is a locality in Western Australia covered by postcode 6512. Postcode 6512 State or territory Western Australia (WA) Region Wa Subs 4 Coast Add a free Namban business listing Be the first listing in Namban Common questionsWhat is the postcode for Namban?Namban, WA has the postcode 6512.What state is Namban in?Namban is in Western Australia (WA).Does postcode 6512 cover more than one suburb?Yes. Postcode 6512 covers 2 localities, so the postcode alone does not identify Namban. Browse other postcodes in Western Australia, or widen the search to every Australian postcode.