Home Postcode finder WA Maddington Maddington postcode WA Maddington is a locality in Western Australia covered by postcode 6109. Postcode 6109 State or territory Western Australia (WA) Region North West Suburbs Add a free Maddington business listing More business listings in Maddington Businesses in Maddington1300 Got Scrap87 Kelvin Road, Maddington WA 6109, Australia · 1300 468 727Add Storage1964 Albany Highway, Maddington WA, Australia · 0894938230Add Water Reticulation1964 Albany Hwy · 08 9493 8290 Common questionsWhat is the postcode for Maddington?Maddington, WA has the postcode 6109.What state is Maddington in?Maddington is in Western Australia (WA).Does postcode 6109 cover more than one suburb?Yes. Postcode 6109 covers 2 localities, so the postcode alone does not identify Maddington. Browse other postcodes in Western Australia, or widen the search to every Australian postcode.