Home Postcode finder WA Gundaring Gundaring postcode WA Gundaring 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 Gundaring business listing Be the first listing in Gundaring Common questionsWhat is the postcode for Gundaring?Gundaring, WA has the postcode 6315.What state is Gundaring in?Gundaring 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 Gundaring. Browse other postcodes in Western Australia, or widen the search to every Australian postcode.