Home Postcode finder WA Bremer Bay Bremer Bay postcode WA Bremer Bay is a locality in Western Australia covered by postcode 6338. Postcode 6338 State or territory Western Australia (WA) Region Wa Subs 2 Gsr Add a free Bremer Bay business listing More business listings in Bremer Bay Businesses in Bremer BayBremer Bay Primary School10 Mary St · 08 98374010 Common questionsWhat is the postcode for Bremer Bay?Bremer Bay, WA has the postcode 6338.What state is Bremer Bay in?Bremer Bay is in Western Australia (WA).Does postcode 6338 cover more than one suburb?Yes. Postcode 6338 covers 9 localities, so the postcode alone does not identify Bremer Bay. Browse other postcodes in Western Australia, or widen the search to every Australian postcode.