Home Postcode finder WA Linfarne Linfarne postcode WA Linfarne is a locality in Western Australia covered by postcode 6258. Postcode 6258 State or territory Western Australia (WA) Region Wa Subs 3 Sth Rd Add a free Linfarne business listing Be the first listing in Linfarne Common questionsWhat is the postcode for Linfarne?Linfarne, WA has the postcode 6258.What state is Linfarne in?Linfarne is in Western Australia (WA).Does postcode 6258 cover more than one suburb?Yes. Postcode 6258 covers 22 localities, so the postcode alone does not identify Linfarne. Browse other postcodes in Western Australia, or widen the search to every Australian postcode.