Home Postcode finder WA Kulin Kulin postcode WA Kulin is a locality in Western Australia covered by postcode 6365. Postcode 6365 State or territory Western Australia (WA) Region Wa Subs 2 Gsr Add a free Kulin business listing More business listings in Kulin Businesses in KulinKulin District High School30 Gordon St · 08 98801264 Common questionsWhat is the postcode for Kulin?Kulin, WA has the postcode 6365.What state is Kulin in?Kulin is in Western Australia (WA).Does postcode 6365 cover more than one suburb?Yes. Postcode 6365 covers 4 localities, so the postcode alone does not identify Kulin. Browse other postcodes in Western Australia, or widen the search to every Australian postcode.