Home Postcode finder WA East Wickepin East Wickepin postcode WA East Wickepin is a locality in Western Australia covered by postcode 6370. Postcode 6370 State or territory Western Australia (WA) Region Wa Subs 2 Gsr Add a free East Wickepin business listing Be the first listing in East Wickepin Common questionsWhat is the postcode for East Wickepin?East Wickepin, WA has the postcode 6370.What state is East Wickepin in?East Wickepin is in Western Australia (WA).Does postcode 6370 cover more than one suburb?Yes. Postcode 6370 covers 5 localities, so the postcode alone does not identify East Wickepin. Browse other postcodes in Western Australia, or widen the search to every Australian postcode.