Home Postcode finder WA Inkpen Inkpen postcode WA Inkpen is a locality in Western Australia covered by postcode 6302. Postcode 6302 State or territory Western Australia (WA) Region Wa Subs 2 Gsr Add a free Inkpen business listing Be the first listing in Inkpen Common questionsWhat is the postcode for Inkpen?Inkpen, WA has the postcode 6302.What state is Inkpen in?Inkpen is in Western Australia (WA).Does postcode 6302 cover more than one suburb?Yes. Postcode 6302 covers 23 localities, so the postcode alone does not identify Inkpen. Browse other postcodes in Western Australia, or widen the search to every Australian postcode.