Home Postcode finder WA Minnivale Minnivale postcode WA Minnivale is a locality in Western Australia covered by postcode 6462. Postcode 6462 State or territory Western Australia (WA) Region Wa Subs 1 G Flds Add a free Minnivale business listing Be the first listing in Minnivale Common questionsWhat is the postcode for Minnivale?Minnivale, WA has the postcode 6462.What state is Minnivale in?Minnivale is in Western Australia (WA).Does postcode 6462 cover more than one suburb?Yes. Postcode 6462 covers 3 localities, so the postcode alone does not identify Minnivale. Browse other postcodes in Western Australia, or widen the search to every Australian postcode.