Home Postcode finder WA South Quairading South Quairading postcode WA South Quairading is a locality in Western Australia covered by postcode 6383. Postcode 6383 State or territory Western Australia (WA) Region Wa Subs 2 Gsr Add a free South Quairading business listing Be the first listing in South Quairading Common questionsWhat is the postcode for South Quairading?South Quairading, WA has the postcode 6383.What state is South Quairading in?South Quairading is in Western Australia (WA).Does postcode 6383 cover more than one suburb?Yes. Postcode 6383 covers 11 localities, so the postcode alone does not identify South Quairading. Browse other postcodes in Western Australia, or widen the search to every Australian postcode.