Home Postcode finder WA Wagin Wagin postcode WA Wagin is a locality in Western Australia covered by postcode 6315. Postcode 6315 State or territory Western Australia (WA) Region Wa Subs 2 Gsr Add a free Wagin business listing More business listings in Wagin Businesses in WaginWagin District High School10 Ranford St · 08 98611877 Common questionsWhat is the postcode for Wagin?Wagin, WA has the postcode 6315.What state is Wagin in?Wagin is in Western Australia (WA).Does postcode 6315 cover more than one suburb?Yes. Postcode 6315 covers 12 localities, so the postcode alone does not identify Wagin. Browse other postcodes in Western Australia, or widen the search to every Australian postcode.