Home Postcode finder WA Wongoondy Wongoondy postcode WA Wongoondy is a locality in Western Australia covered by postcode 6630. Postcode 6630 State or territory Western Australia (WA) Region Wa Subs 4 Coast Add a free Wongoondy business listing Be the first listing in Wongoondy Common questionsWhat is the postcode for Wongoondy?Wongoondy, WA has the postcode 6630.What state is Wongoondy in?Wongoondy is in Western Australia (WA).Does postcode 6630 cover more than one suburb?Yes. Postcode 6630 covers 8 localities, so the postcode alone does not identify Wongoondy. Browse other postcodes in Western Australia, or widen the search to every Australian postcode.