Home Postcode finder WA Myalup Myalup postcode WA Myalup is a locality in Western Australia covered by postcode 6220. Postcode 6220 State or territory Western Australia (WA) Region Wa Subs 3 Sth Rd Add a free Myalup business listing Be the first listing in Myalup Common questionsWhat is the postcode for Myalup?Myalup, WA has the postcode 6220.What state is Myalup in?Myalup is in Western Australia (WA).Does postcode 6220 cover more than one suburb?Yes. Postcode 6220 covers 6 localities, so the postcode alone does not identify Myalup. Browse other postcodes in Western Australia, or widen the search to every Australian postcode.