Home Postcode finder QLD West Mackay West Mackay postcode QLD West Mackay is a locality in Queensland covered by postcode 4740. Postcode 4740 State or territory Queensland (QLD) Region Central QLD Add a free West Mackay business listing More business listings in West Mackay Businesses in West MackayAllure Laser and Skin Studio142 Nebo Rd, West Mackay Mackay, QLD 4740, Australia · 1300112311 Common questionsWhat is the postcode for West Mackay?West Mackay, QLD has the postcode 4740.What state is West Mackay in?West Mackay is in Queensland (QLD).Does postcode 4740 cover more than one suburb?Yes. Postcode 4740 covers 50 localities, so the postcode alone does not identify West Mackay. Browse other postcodes in Queensland, or widen the search to every Australian postcode.