Home Postcode finder WA South Burracoppin South Burracoppin postcode WA South Burracoppin is a locality in Western Australia covered by postcode 6421. Postcode 6421 State or territory Western Australia (WA) Region Wa Subs 1 G Flds Add a free South Burracoppin business listing Be the first listing in South Burracoppin Common questionsWhat is the postcode for South Burracoppin?South Burracoppin, WA has the postcode 6421.What state is South Burracoppin in?South Burracoppin is in Western Australia (WA).Does postcode 6421 cover more than one suburb?Yes. Postcode 6421 covers 3 localities, so the postcode alone does not identify South Burracoppin. Browse other postcodes in Western Australia, or widen the search to every Australian postcode.