Home Postcode finder WA Walyunga National Park Walyunga National Park postcode WA Walyunga National Park is a locality in Western Australia covered by postcode 6084. Postcode 6084 State or territory Western Australia (WA) Region Wa Subs 3 Sth Rd Add a free Walyunga National Park business listing Be the first listing in Walyunga National Park Common questionsWhat is the postcode for Walyunga National Park?Walyunga National Park, WA has the postcode 6084.What state is Walyunga National Park in?Walyunga National Park is in Western Australia (WA).Does postcode 6084 cover more than one suburb?Yes. Postcode 6084 covers 5 localities, so the postcode alone does not identify Walyunga National Park. Browse other postcodes in Western Australia, or widen the search to every Australian postcode.