Home Postcode finder WA Carbunup River Carbunup River postcode WA Carbunup River is a locality in Western Australia covered by postcode 6280. Postcode 6280 State or territory Western Australia (WA) Region Wa Subs 3 Sth Rd Add a free Carbunup River business listing Be the first listing in Carbunup River Common questionsWhat is the postcode for Carbunup River?Carbunup River, WA has the postcode 6280.What state is Carbunup River in?Carbunup River is in Western Australia (WA).Does postcode 6280 cover more than one suburb?Yes. Postcode 6280 covers 34 localities, so the postcode alone does not identify Carbunup River. Browse other postcodes in Western Australia, or widen the search to every Australian postcode.