Home Postcodes by state WA Moulyinning Moulyinning postcode WA Moulyinning is a locality in Western Australia covered by postcode 6351. Postcode 6351 State or territory Western Australia (WA) Region Wa Subs 2 Gsr Add a free Moulyinning business listing Be the first listing in Moulyinning Common questionsWhat is the postcode for Moulyinning?Moulyinning, WA has the postcode 6351.What state is Moulyinning in?Moulyinning is in Western Australia (WA).Does postcode 6351 cover more than one suburb?Yes. Postcode 6351 covers 2 localities, so the postcode alone does not identify Moulyinning. Browse other postcodes in Western Australia, or widen the search to every Australian postcode.