Home Postcodes by state WA Mundrabilla Mundrabilla postcode WA Mundrabilla is a locality in Western Australia covered by postcode 6443. Postcode 6443 State or territory Western Australia (WA) Region Wa Subs 1 G Flds Add a free Mundrabilla business listing Be the first listing in Mundrabilla Common questionsWhat is the postcode for Mundrabilla?Mundrabilla, WA has the postcode 6443.What state is Mundrabilla in?Mundrabilla is in Western Australia (WA).Does postcode 6443 cover more than one suburb?Yes. Postcode 6443 covers 11 localities, so the postcode alone does not identify Mundrabilla. Browse other postcodes in Western Australia, or widen the search to every Australian postcode.