Home Postcode finder WA Karlkurla Karlkurla postcode WA Karlkurla is a locality in Western Australia covered by postcode 6430. Postcode 6430 State or territory Western Australia (WA) Region Wa Subs 1 G Flds Add a free Karlkurla business listing Be the first listing in Karlkurla Common questionsWhat is the postcode for Karlkurla?Karlkurla, WA has the postcode 6430.What state is Karlkurla in?Karlkurla is in Western Australia (WA).Does postcode 6430 cover more than one suburb?Yes. Postcode 6430 covers 14 localities, so the postcode alone does not identify Karlkurla. Browse other postcodes in Western Australia, or widen the search to every Australian postcode.