Home Postcode finder QLD Mount Mulgrave Mount Mulgrave postcode QLD Mount Mulgrave is a locality in Queensland covered by postcode 4871. Postcode 4871 State or territory Queensland (QLD) Region North QLD Add a free Mount Mulgrave business listing Be the first listing in Mount Mulgrave Common questionsWhat is the postcode for Mount Mulgrave?Mount Mulgrave, QLD has the postcode 4871.What state is Mount Mulgrave in?Mount Mulgrave is in Queensland (QLD).Does postcode 4871 cover more than one suburb?Yes. Postcode 4871 covers 103 localities, so the postcode alone does not identify Mount Mulgrave. Browse other postcodes in Queensland, or widen the search to every Australian postcode.