Home Postcode finder QLD Gregory Gregory postcode QLD Gregory is a locality in Queensland covered by postcode 4830. Postcode 4830 State or territory Queensland (QLD) Region North QLD Add a free Gregory business listing Be the first listing in Gregory Common questionsWhat is the postcode for Gregory?Gregory, QLD has the postcode 4830.What state is Gregory in?Gregory is in Queensland (QLD).Does postcode 4830 cover more than one suburb?Yes. Postcode 4830 covers 5 localities, so the postcode alone does not identify Gregory. Browse other postcodes in Queensland, or widen the search to every Australian postcode.