Home Postcode finder WA Dalwallinu Dalwallinu postcode WA Dalwallinu is a locality in Western Australia covered by postcode 6609. Postcode 6609 State or territory Western Australia (WA) Region Wa Subs 4 Coast Add a free Dalwallinu business listing More business listings in Dalwallinu Businesses in DalwallinuCoerco Engineered Poly ProductsLot 581 Huggett Drive · 61 8 9661 0610Dalwallinu District High School97 Johnson St · 08 96611204Shermac15 Deacon Street, Dalwallinu WA 6609, Australia · 1300 799 943 Common questionsWhat is the postcode for Dalwallinu?Dalwallinu, WA has the postcode 6609.What state is Dalwallinu in?Dalwallinu is in Western Australia (WA).Does postcode 6609 cover more than one suburb?Yes. Postcode 6609 covers 3 localities, so the postcode alone does not identify Dalwallinu. Browse other postcodes in Western Australia, or widen the search to every Australian postcode.