Home Postcode finder WA Commodine Commodine postcode WA Commodine is a locality in Western Australia covered by postcode 6311. Postcode 6311 State or territory Western Australia (WA) Region Wa Subs 2 Gsr Add a free Commodine business listing Be the first listing in Commodine Common questionsWhat is the postcode for Commodine?Commodine, WA has the postcode 6311.What state is Commodine in?Commodine is in Western Australia (WA).Does postcode 6311 cover more than one suburb?Yes. Postcode 6311 covers 8 localities, so the postcode alone does not identify Commodine. Browse other postcodes in Western Australia, or widen the search to every Australian postcode.