Home Postcode finder WA Gillimanning Gillimanning postcode WA Gillimanning is a locality in Western Australia covered by postcode 6308. Postcode 6308 State or territory Western Australia (WA) Region Wa Subs 2 Gsr Add a free Gillimanning business listing Be the first listing in Gillimanning Common questionsWhat is the postcode for Gillimanning?Gillimanning, WA has the postcode 6308.What state is Gillimanning in?Gillimanning is in Western Australia (WA).Does postcode 6308 cover more than one suburb?Yes. Postcode 6308 covers 10 localities, so the postcode alone does not identify Gillimanning. Browse other postcodes in Western Australia, or widen the search to every Australian postcode.