Home Postcode finder WA Myrup Myrup postcode WA Myrup is a locality in Western Australia covered by postcode 6450. Postcode 6450 State or territory Western Australia (WA) Region Wa Subs 1 G Flds Add a free Myrup business listing Be the first listing in Myrup Common questionsWhat is the postcode for Myrup?Myrup, WA has the postcode 6450.What state is Myrup in?Myrup is in Western Australia (WA).Does postcode 6450 cover more than one suburb?Yes. Postcode 6450 covers 23 localities, so the postcode alone does not identify Myrup. Browse other postcodes in Western Australia, or widen the search to every Australian postcode.