Home Postcode finder WA Bobalong Bobalong postcode WA Bobalong is a locality in Western Australia covered by postcode 6320. Postcode 6320 State or territory Western Australia (WA) Region Wa Subs 2 Gsr Add a free Bobalong business listing Be the first listing in Bobalong Common questionsWhat is the postcode for Bobalong?Bobalong, WA has the postcode 6320.What state is Bobalong in?Bobalong is in Western Australia (WA).Does postcode 6320 cover more than one suburb?Yes. Postcode 6320 covers 7 localities, so the postcode alone does not identify Bobalong. Browse other postcodes in Western Australia, or widen the search to every Australian postcode.