Home Postcode finder WA Karragullen Karragullen postcode WA Karragullen is a locality in Western Australia covered by postcode 6111. Postcode 6111 State or territory Western Australia (WA) Region North West Suburbs Add a free Karragullen business listing Be the first listing in Karragullen Common questionsWhat is the postcode for Karragullen?Karragullen, WA has the postcode 6111.What state is Karragullen in?Karragullen is in Western Australia (WA).Does postcode 6111 cover more than one suburb?Yes. Postcode 6111 covers 8 localities, so the postcode alone does not identify Karragullen. Browse other postcodes in Western Australia, or widen the search to every Australian postcode.