Home Postcode finder WA Karramindie Karramindie postcode WA Karramindie is a locality in Western Australia covered by postcode 6429. Postcode 6429 State or territory Western Australia (WA) Region Wa Subs 1 G Flds Add a free Karramindie business listing Be the first listing in Karramindie Common questionsWhat is the postcode for Karramindie?Karramindie, WA has the postcode 6429.What state is Karramindie in?Karramindie is in Western Australia (WA).Does postcode 6429 cover more than one suburb?Yes. Postcode 6429 covers 8 localities, so the postcode alone does not identify Karramindie. Browse other postcodes in Western Australia, or widen the search to every Australian postcode.