Home Postcode finder WA Monkey Mia Monkey Mia postcode WA Monkey Mia is a locality in Western Australia covered by postcode 6537. Postcode 6537 State or territory Western Australia (WA) Region Wa Subs 4 Coast Add a free Monkey Mia business listing Be the first listing in Monkey Mia Common questionsWhat is the postcode for Monkey Mia?Monkey Mia, WA has the postcode 6537.What state is Monkey Mia in?Monkey Mia is in Western Australia (WA).Does postcode 6537 cover more than one suburb?Yes. Postcode 6537 covers 7 localities, so the postcode alone does not identify Monkey Mia. Browse other postcodes in Western Australia, or widen the search to every Australian postcode.