Home Postcode finder WA Quellington Quellington postcode WA Quellington 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 Quellington business listing Be the first listing in Quellington Common questionsWhat is the postcode for Quellington?Quellington, WA has the postcode 6302.What state is Quellington in?Quellington 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 Quellington. Browse other postcodes in Western Australia, or widen the search to every Australian postcode.