Home Postcode finder WA Augusta Augusta postcode WA Augusta is a locality in Western Australia covered by postcode 6290. Postcode 6290 State or territory Western Australia (WA) Region Wa Subs 3 Sth Rd Add a free Augusta business listing More business listings in Augusta Businesses in AugustaAugusta Primary School32 Allnut Tce · 08 97581525Sunplay60 Victoria Pde · 08 9758 1068 Common questionsWhat is the postcode for Augusta?Augusta, WA has the postcode 6290.What state is Augusta in?Augusta is in Western Australia (WA).Does postcode 6290 cover more than one suburb?Yes. Postcode 6290 covers 6 localities, so the postcode alone does not identify Augusta. Browse other postcodes in Western Australia, or widen the search to every Australian postcode.