Home Postcode finder WA Gregory Gregory postcode WA Gregory is a locality in Western Australia covered by postcode 6535. Postcode 6535 State or territory Western Australia (WA) Region Wa Subs 4 Coast Add a free Gregory business listing Be the first listing in Gregory Common questionsWhat is the postcode for Gregory?Gregory, WA has the postcode 6535.What state is Gregory in?Gregory is in Western Australia (WA).Does postcode 6535 cover more than one suburb?Yes. Postcode 6535 covers 10 localities, so the postcode alone does not identify Gregory. Browse other postcodes in Western Australia, or widen the search to every Australian postcode.