Home Postcode finder WA Gillingarra Gillingarra postcode WA Gillingarra is a locality in Western Australia covered by postcode 6510. Postcode 6510 State or territory Western Australia (WA) Region Wa Subs 4 Coast Add a free Gillingarra business listing Be the first listing in Gillingarra Common questionsWhat is the postcode for Gillingarra?Gillingarra, WA has the postcode 6510.What state is Gillingarra in?Gillingarra is in Western Australia (WA).Does postcode 6510 cover more than one suburb?Yes. Postcode 6510 covers 6 localities, so the postcode alone does not identify Gillingarra. Browse other postcodes in Western Australia, or widen the search to every Australian postcode.