Home Postcode finder WA Tandegin Tandegin postcode WA Tandegin is a locality in Western Australia covered by postcode 6415. Postcode 6415 State or territory Western Australia (WA) Region Wa Subs 1 G Flds Add a free Tandegin business listing Be the first listing in Tandegin Common questionsWhat is the postcode for Tandegin?Tandegin, WA has the postcode 6415.What state is Tandegin in?Tandegin is in Western Australia (WA).Does postcode 6415 cover more than one suburb?Yes. Postcode 6415 covers 6 localities, so the postcode alone does not identify Tandegin. Browse other postcodes in Western Australia, or widen the search to every Australian postcode.