Home Postcode finder WA Gingin Gingin postcode WA Gingin is a locality in Western Australia covered by postcode 6503. Postcode 6503 State or territory Western Australia (WA) Region Wa Subs 4 Coast Add a free Gingin business listing More business listings in Gingin Businesses in GinginCountry Values Holiday Homes4 Brockman Street · 08 9575 2566Gingin District High School1 Daw St · 08 95752249Outback Camp ToursLot 3 Brand Highway · 61 427 111 071 Common questionsWhat is the postcode for Gingin?Gingin, WA has the postcode 6503.What state is Gingin in?Gingin is in Western Australia (WA).Does postcode 6503 cover more than one suburb?Yes. Postcode 6503 covers 20 localities, so the postcode alone does not identify Gingin. Browse other postcodes in Western Australia, or widen the search to every Australian postcode.