Home Postcode finder WA Middle Swan Middle Swan postcode WA Middle Swan is a locality in Western Australia covered by postcode 6056. Postcode 6056 State or territory Western Australia (WA) Region North West Suburbs Add a free Middle Swan business listing More business listings in Middle Swan Businesses in Middle SwanBetta SecurityMiddle Swan WA 6056, Australia · 08 9250 1502Commercial Fridge Rentals59 Great Northern Hwy, Middle Swan WA 6056, Australia · (08) 9250 2222Midland Christian School401 Great Northern Hwy · 08 92744930 Common questionsWhat is the postcode for Middle Swan?Middle Swan, WA has the postcode 6056.What state is Middle Swan in?Middle Swan is in Western Australia (WA).Does postcode 6056 cover more than one suburb?Yes. Postcode 6056 covers 17 localities, so the postcode alone does not identify Middle Swan. Browse other postcodes in Western Australia, or widen the search to every Australian postcode.