Home Postcode finder WA Ambergate Ambergate postcode WA Ambergate 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 Ambergate business listing Be the first listing in Ambergate Common questionsWhat is the postcode for Ambergate?Ambergate, WA has the postcode 6280.What state is Ambergate in?Ambergate 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 Ambergate. Browse other postcodes in Western Australia, or widen the search to every Australian postcode.